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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1, 2, 3-4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 3); 7 (, 1 to 3); 8 (, 1, 2); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1 to 3); 12 (, 1 to 3); 13 (, 1, 2); 14 (, 1, 2); 15 (, 1, 2); 16 (, 1, 2); 17 (, 1, 2); 18 (, 1 to 3); 19 (, 1, 2); 20 (, 1, 2); 21 (, 1, 2); 22 (, 1, 2); 23 (, 1, 2); 24 (, 1, 2); 25 (, 1, 2); 26 (, 1, 2); 27 (, 1, 2); 28 (, 1, 2); 29 (, 1, 2); 30 (, 1, 2); 31 (, 1, 2); 32 (, 1, 2); 33 (, 1, 2); 34 (, 1, 2); 35 (, 1, 2); 36 (, 1, 2); 37 (, 1, 2); 38 (, 1, 2); 39 (, 1, 2); 40 (, 1, 2); 41 (, 1, 2); 42 (, 1, 2); 43 (, 1, 2); 44 (, 1, 2); 45 (, 1, 2); 46 (, 1, 2); 47 (, 1, 2); 48 (, 1, 2); 49 (, 1, 2); 50 (, 1, 2); 51 (, 1, 2); 52 (, 1, 2); 53 (, 1, 2); 54 (, 1, 2); 55 (, 1, 2); 56 (, 1, 2); 57 (, 1, 2); 58 (, 1, 2); 59 (, 1, 2); 60 (, 1, 2); 61 (, 1, 2); 62 (, 1, 2); 63 (, 1, 2); 64 (, 1, 2); 65 (, 1, 2); 66 (, 1, 2); 67 (, 1, 2); 68 (, 1, 2); 69 (, 1, 2); 70 (, 1, 2); 71 (, 1, 2); 72 (, 1-2); 73 (, 1, 2); 74 (, 1, 2); 75 (, 1-2); 76 (, 1, 2); 77 (, 1-2); 78 (, 1, 2); 79 (, 1, 2); 80 (, 1, 2); 81 (, 1, 2); 82 (, 1-2); 83 (, 1, 2); 84 (, 1-2); 85 (, 1, 2); 86 (, 1-2); 87 (, 1, 2); 88 (, 1-2); 89 (, 1, 2); 90 (, 1, 2); 91 (, 1, 2); 92 (, 1-2); 93 (, 1, 2); 94 (, 1, 2); 95 (, 1, 2); 96 (, 1, 2); 97 (, 1, 2); 98 (, 1, 2); 99 (, 1-2); 100 (, 1-2); 101 (, 1-2); 102 (, 1-2); 103 (, 1, 2); 104 (, 1, 2); 105 (, 1, 2); 106 (, 1, 2); 107 (, 1, 2); 108 (, 1, 2); 109 (, 1, 2); 110 (, 1, 2); 111 (, 1, 2); 112 (, 1, 2); 113 (, 1-2); 114 (, 1, 2); 115 (, 1, 2); 116 (, 1, 2); 117 (, 1, 2); 118 (, 1-2); 119 (, 1, 2); 120 (, 1, 2); 121 (, 1-2); 122 (, 1, 2); 123 (, 1, 2); 124 (, 1, 2); 125 (, 1, 2); 126 (, 1, 2); 127 (, 1, 2); 128 (, 1, 2); 129 (, 1, 2); 130 (, 1-2); 131 (, 1, 2); 132 (, 1, 2); 133 (, 1, 2); 134 (, 1, 2); 135 (, 1, 2); 136 (, 1, 2); 137 (, 1, 2); 138 (, 1, 2); 139 (, 1, 2); 140 (, 1, 2); 141 (, 1, 2); 142 (, 1, 2); 143 (, 1, 2); 144 (, 1, 2); 145 (, 1, 2); 146 (, 1, 2); 147 (, 1, 2); 148 (, 1, 2); 149 (, 1, 2); 150 (, 1-2); 151 (, 1, 2); 152 (, 1, 2); 153 (, 1-2); 154 (, 1, 2); 155 (, 1, 2); 156 (, 1, 2); 157 (, 1-2); 158 (, 1, 2); 159 (, 1, 2); 160 (, 1, 2); 161 (, 1, 2); 162 (, 1-2); 163 (, 1, 2); 164 (, 1-2); 165 (, 1, 2); 166 (, 1, 2); 167 (, 1-2); 168 (, 1, 2); 169 (, 1, 2); 170 (, 1, 2); 171 (, 1, 2); 172 (, 1-2); 173 (, 1, 2); 174 (, 1-2); 175 (, 1, 2); 176 (, 1, 2); 177 (, 1-2); 178 (, 1, 2); 179 (, 1, 2); 180 (, 1-2); 181 (, 1, 2); 182 (, 1, 2); 183 (, 1, 2); 184 (, 1, 2); 185 (, 1, 2); 186 (, 1-2); 187 (, 1, 2); 188 (, 1, 2); 189 (, 1, 2); 190 (, 1-2); 191 (, 1, 2); 192 (, 1-2); 193 (, 1-2); 194 (, 1, 2); 195 (, 1, 2); 196 (, 1, 2); 197 (, 1 to 3); 198 (, 1, 2); 199 (, 1, 2); 200 (, 1-2); 201 (, 1, 2); 202 (, 1, 2); 203 (, 1, 2); 204 (, 1-2); 205 (, 1, 2); 206 (, 1, 2); 207 (, 1, 2); 208 (, 1, 2); 209 (, 1, 2); 210 (, 1-2); 211 (, 1-2); 212 (, 1, 2); 213 (, 1, 2); 214 (, 1, 2); 215 (, 1, 2); 216 (, 1-2); 217 (, 1, 2); 218 (, 1-2); 219 (, 1, 2); 220 (, 1, 2); 221 (, 1, 2); 222 (, 1, 2); 223 (, 1-2); 224 (, 1-2); 225 (, 1, 2); 226 (, 1, 2); 227 (, 1, 2); 228 (, 1-2); 229 (, 1, 2); 230 (, 1-2); 231 (, 1-2); 232 (, 1-2); 233 (, 1, 2); 234 (, 1, 2); 235 (, 1-2); 236 (, 1, 2); 237 (, 1, 2); 238 (, 1, 2); 239 (, 1-2); 240 (, 1, 2); 241 (, 1, 2); 242 (, 1-2); 243 (, 1, 2); 244 (, 1-2); 245 (, 1, 2); 246 (, 1, 2); 247 (, 1, 2); 248 (, 1, 2); 249 (, 1, 2); 250 (, 1, 2); 251 (, 1-2); 252 (, 1, 2); 253 (, 1-2); 254 (, 1, 2); 255 (, 1, 2); 256 (, 1-2); 257 (, 1, 2); 258 (, 1, 2); 259 (, 1-2); 260 (, 1, 2); 261 (, 1, 2); 262 (, 1, 2); 263 (, 1-2); 264 (, 1, 2); 265 (, 1-2); 266 (, 1, 2); 267 (, 1, 2); 268 (, 1, 2); 269 (, 1, 2); 270 (, 1, 2); 271 (, 1-2); 272 (, 1, 2); 273 (, 1, 2); 274 (, 1-2); 275 (, 1-2); 276 (, 1-2); 277 (, 1, 2); 278 (, 1, 2); 279 (, 1, 2); 280 (, 1, 2); 281 (, 1, 2); 282 (, 1, 2); 283 (, 1, 2); 284 (, 1, 2); 285 (, 1-2); 286 (, 1, 2); 287 (, 1-2); 288 (, 1, 2); 289 (, 1 to 12); 290 (, 1 to 12); 291 (, 1 to 8, 9-10, 11, 12); 292 (, 1 to 12); 293 (, 1 to 12); 294 (, 1 to 12); 295 (, 1 to 12); 296 (, 1 to 12); 297 (, 1 to 12); 298 (, 1 to 12); 299 (, 1 to 12); 300 (, 1 to 7); 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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1 to 148
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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 293
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 301
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Portico
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Preserved
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2026-02-12
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Preserved : 1967: 1(1-4), 1967: 2(1-4), 1968: 3(1-4), 1968: 4(1-4), 1968: 5(1-4), 1969: 6(1-3), 1969: 7(1-3), 1969: 8(1-2), 1969: 9(1-2), 1969: 10(1-2), 1970: 11(1-3), 1970: 12(1-3), 1970: 13(1-2), 1970: 14(1-2), 1970: 15(1-2), 1971: 16(1-2), 1971: 17(1-2), 1971: 18(1-3), 1971: 19(1-2), 1971: 20(1-2), 1971: 21(1-2), 1972: 22(1-2), 1972: 23(1-2), 1972: 24(1-2), 1972: 25(1-2), 1972: 26(1-2), 1972: 27(1-2), 1973: 28(1-2), 1973: 29(1-2), 1973: 30(1-2), 1973: 31(1-2), 1973: 32(1-2), 1973: 33(1-2), 1974: 34(1-2), 1974: 35(1-2), 1974: 36(1-2), 1974: 37(1-2), 1974: 38(1-2), 1974: 39(1-2), 1975: 40(1-2), 1975: 41(1-2), 1975: 42(1-2), 1975: 43(1-2), 1975: 44(1-2), 1975: 45(1-2), 1976: 46(1-2), 1976: 47(1-2), 1976: 48(1-2), 1976: 49(1-2), 1976: 50(1-2), 1977: 51(1-2), 1977: 52(1-2), 1977: 53(1-2), 1977: 54(1-2), 1977: 55(1-2), 1978: 56(1-2), 1978: 57(1-2), 1978: 58(1-2), 1978: 59(1-2), 1978: 60(1-2), 1979: 61(1-2), 1979: 62(1-2), 1979: 63(1-2), 1979: 64(1-2), 1980: 65(1-2), 1980: 66(1-2), 1980: 67(1-2), 1980: 68(1-2), 1981: 69(1-2), 1981: 70(1-2), 1981: 71(1-2), 1981: 72(1-2), 1981: 73(1-2), 1981: 74(1-2), 1982: 75(1-2), 1982: 76(1-2), 1982: 77(1-2), 1982: 78(1-2), 1982: 79(1-2), 1982: 80(1-2), 1982: 81(1-2), 1983: 82(1-2), 1983: 83(1-2), 1983: 84(1-2), 1983: 85(1-2), 1983: 86(1-2), 1983: 87(1-2), 1983: 88(1-2), 1983: 89(1-2), 1984: 90(1-2), 1984: 91(1-2), 1984: 92(1-2), 1984: 93(1-2), 1984: 94(1-2), 1985: 95(1-2), 1985: 96(1-2), 1985: 97(1-2), 1985: 98(1-2), 1985: 99(1-2), 1985: 100(1-2), 1985: 101(1-2), 1985: 102(1-2), 1986: 103(1-2), 1986: 104(1-2), 1986: 105(1-2), 1986: 106(1-2), 1986/1987: 107(1-2), 1987: 108(1-2), 1987: 109(1-2), 1987: 110(1-2), 1987: 111(1-2), 1987: 112(1-2), 1987: 113(1-2), 1987/1988: 114(1-2), 1988: 115(1-2), 1988: 116(1-2), 1988: 117(1-2), 1988: 118(1-2), 1989: 119(1-2), 1989: 120(1-2), 1989: 121(1-2), 1989: 122(1-2), 1989: 123(1-2), 1989: 124(1-2), 1990: 125(1-2), 1990: 126(1-2), 1990: 127(1-2), 1990: 128(1-2), 1990: 129(1-2), 1990: 130(1-2), 1991: 131(1-2), 1991: 132(1-2), 1991: 133(1-2), 1991: 134(1-2), 1991: 135(1-2), 1991: 136(1-2), 1992: 137(1-2), 1992: 138(1-2), 1992: 139(1-2), 1992: 140(1-2), 1992: 141(1-2), 1992: 142(1-2), 1993: 143(1-2), 1993: 144(1-2), 1993: 145(1-2), 1993: 146(1-2), 1993: 147(1-2), 1993: 148(1-2), 1994: 149(1-2), 1994: 150(1-2), 1994: 151(1-2), 1994: 152(1-2), 1994: 153(1-2), 1994: 154(1-2), 1994: 155(1-2), 1995: 156(1-2), 1995: 157(1-2), 1995: 158(1-2), 1995: 159(1-2), 1995: 160(1-2), 1995: 161(1-2), 1995: 162(1-2), 1996: 163(1-2), 1996: 164(1-2), 1996: 165(1-2), 1996: 166(1-2), 1996: 167(1-2), 1996: 168(1-2), 1996: 169(1-2), 1997: 170(1-2), 1997: 171(1-2), 1997: 172(1-2), 1997: 173(1-2), 1997: 174(1-2), 1997: 175(1-2), 1997: 176(1-2), 1998: 177(1-2), 1998: 178(1-2), 1998: 179(1-2), 1998: 180(1-2), 1998: 181(1-2), 1998: 182(1-2), 1998: 183(1-2), 1999: 184(1-2), 1999: 185(1-2), 1999: 186(1-2), 1999: 187(1-2), 1999: 188(1-2), 1999: 189(1-2), 1999: 190(1-2), 2000: 191(1-2), 2000: 192(1-2), 2000: 193(1-2), 2000: 194(1-2), 2000: 195(1-2), 2000: 196(1-2), 2000/2001: 197(1-3), 2001: 198(1-2), 2001: 199(1-2), 2001: 200(1-2), 2001: 201(1-2), 2001: 202(1-2), 2001: 203(1-2), 2001: 204(1-2), 2002: 205(1-2), 2002: 206(1-2), 2002: 207(1-2), 2002: 208(1-2), 2002: 209(1-2), 2002: 210(1-2), 2002: 211(1-2), 2003: 212(1-2), 2003: 213(1-2), 2003: 214(1-2), 2003: 215(1-2), 2003: 216(1-2), 2003: 217(1-2), 2003: 218(1-2), 2004: 219(1-2), 2004: 220(1-2), 2004: 221(1-2), 2004: 222(1-2), 2004: 223(1-2), 2004: 224(1-2), 2004: 225(1-2), 2005: 226(1-2), 2005: 227(1-2), 2005: 228(1-2), 2005: 229(1-2), 2005: 230(1-2), 2005: 231(1-2), 2005: 232(1-2), 2006: 233(1-2), 2006: 234(1-2), 2006: 235(1-2), 2006: 236(1-2), 2006: 237(1-2), 2006: 238(1-2), 2006: 239(1-2), 2007: 240(1-2), 2007: 241(1-2), 2007: 242(1-2), 2007: 243(1-2), 2007: 244(1-2), 2007: 245(1-2), 2007: 246(1-2), 2008: 247(1-2), 2008: 248(1-2), 2008: 249(1-2), 2008: 250(1-2), 2008: 251(1-2), 2008: 252(1-2), 2008: 253(1-2), 2009: 254(1-2), 2009: 255(1-2), 2009: 256(1-2), 2009: 257(1-2), 2009: 258(1-2), 2009: 259(1-2), 2009: 260(1-2), 2010: 261(1-2), 2010: 262(1-2), 2010: 263(1-2), 2010: 264(1-2), 2010: 265(1-2), 2010: 266(1-2), 2010: 267(1-2), 2011: 268(1-2), 2011: 269(1-2), 2011: 270(1-2), 2011: 271(1-2), 2011: 272(1-2), 2011: 273(1-2), 2011: 274(1-2), 2012: 275(1-2), 2012: 276(1-2), 2012: 277(1-2), 2012: 278(1-2), 2012: 279(1-2), 2012: 280(1-2), 2013: 282(1-2), 2013: 283(1-2), 2012/2013: 284(1-2), 2013: 285(1-2), 2013: 286(1-2), 2013: 287(1-2), 2013: 288(1-2), 2014: 289(1-12), 2015: 290(3-12), 2016: 291(1-12), 2017: 292(1-12), 2018: 293(1-12), 2019: 294(1-12), 2020: 295(1-12), 2021: 296(1-12), 2022: 297(1-12), 2023: 298(1-12), 2024: 299(1-12), 2025: 300(1-12), 2025/2026: 301(1-2)
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LOCKSS Archive
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In Progress
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2026-02-09
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294
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Library of Congress
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Preserved
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2025-04-07
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292 (1, 10 to 12); 293 (2 to 12); 294 (1 to 12); 295 (1 to 12); 296 (1 to 12); 297 (1 to 12); 298 (1 to 12); 299 (1 to 10); 300 (1)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 2 (1); 17 (2); 18 (1); 19; 21 (2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1 to 9, 11, 12); 171 (1, 2); 172 (1); 173 (2); 174 (1); 175 (2); 176 (1, 2); 177 (1); 178 (2); 179 (1, 2); 181 (1, 2); 182 (1, 2); 183 (1, 2); 184 (1, 2); 185 (1, 2); 186 (1); 187 (2); 188 (1, 2); 189 (1, 2); 191 (1, 2); 192 (1); 193; 194 (2); 195 (1, 2); 196 (1, 2); 197 (1 to 3); 198 (1, 2); 199 (1, 2); 211 (1); 212 (2); 213 (1, 2); 214 (1, 2); 215 (1, 2); 216 (1); 217 (2); 218 (1); 219 (2); 221 (1, 2); 222 (1, 2); 223 (1); 224; 225 (2); 226 (1, 2); 227 (1, 2); 228 (1); 229 (2); 231 (1); 232; 233 (2); 234 (1, 2); 235 (1); 236 (2); 237 (1, 2); 238 (1, 2); 239 (1); 241 (2); 242 (1); 243 (2); 244 (1); 245 (2); 246 (1, 2); 247 (1, 2); 248 (1, 2); 249 (1, 2); 251 (1); 252 (2); 253 (1); 254 (2); 255 (1, 2); 256 (1); 257 (2); 258 (1, 2); 259 (1); 261 (2); 262 (1, 2); 263 (1); 264 (2); 265 (1); 266 (2); 267 (1, 2); 268 (1, 2); 269 (1, 2); 271 (1); 272 (2); 273 (1, 2); 275 (1); 276; 277 (2); 278 (1, 2); 279 (1, 2); 281 (1, 2); 282 (1, 2); 283 (1, 2); 284 (1, 2); 285 (1); 286 (2); 287 (1); 288 (2); 289 (1 to 9, 11, 12); 291 (1 to 9, 11, 12); 292 (1 to 9, 11, 12); 293 (1 to 9, 11, 12); 294 (1 to 9, 11, 12); 295 (1 to 9, 11, 12); 296 (1 to 9, 11, 12); 297 (1 to 9, 11, 12); 298 (1 to 9, 11, 12); 299 (1 to 9, 11, 12)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 2 (1); 17 (2); 18 (1); 19; 21 (2); 22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1 to 9, 11, 12); 171 (1, 2); 172 (1); 173 (2); 174 (1); 175 (2); 176 (1, 2); 177 (1); 178 (2); 179 (1, 2); 181 (1, 2); 182 (1, 2); 183 (1, 2); 184 (1, 2); 185 (1, 2); 186 (1); 187 (2); 188 (1, 2); 189 (1, 2); 191 (1, 2); 192 (1); 193; 194 (2); 195 (1, 2); 196 (1, 2); 197 (1 to 3); 198 (1, 2); 199 (1, 2); 211 (1); 212 (2); 213 (1, 2); 214 (1, 2); 215 (1, 2); 216 (1); 217 (2); 218 (1); 219 (2); 221 (1, 2); 222 (1, 2); 223 (1); 224; 225 (2); 226 (1, 2); 227 (1, 2); 228 (1); 229 (2); 231 (1); 232; 233 (2); 234 (1, 2); 235 (1); 236 (2); 237 (1, 2); 238 (1, 2); 239 (1); 241 (2); 242 (1); 243 (2); 244 (1); 245 (2); 246 (1, 2); 247 (1, 2); 248 (1, 2); 249 (1, 2); 251 (1); 252 (2); 253 (1); 254 (2); 255 (1, 2); 256 (1); 257 (2); 258 (1, 2); 259 (1); 261 (2); 262 (1, 2); 263 (1); 264 (2); 265 (1); 266 (2); 267 (1, 2); 268 (1, 2); 269 (1, 2); 271 (1); 272 (2); 273 (1, 2); 275 (1); 276; 277 (2); 278 (1, 2); 279 (1, 2); 281 (1, 2); 282 (1, 2); 283 (1, 2); 284 (1, 2); 285 (1); 286 (2); 287 (1); 288 (2); 289 (1 to 9, 11, 12); 291 (1 to 9, 11, 12); 292 (1 to 9, 11, 12); 293 (1 to 9, 11, 12); 294 (1 to 9, 11, 12); 295 (1 to 9, 11, 12); 296 (1 to 9, 11, 12); 297 (1 to 9, 11, 12); 298 (1 to 9, 11, 12); 299 (1 to 9, 11, 12)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 170 (1, 2); 171 (1, 2); 172 (1); 173 (2); 174 (1); 175 (2); 176 (1, 2); 177 (1); 178 (2); 179 (1, 2); 180 (1); 181 (2); 182 (1, 2); 183 (1, 2); 184 (1, 2); 185 (1, 2); 186 (1); 187 (2); 188 (1, 2); 189 (1, 2); 190 (1); 191 (2); 192 (1); 193; 194 (2); 195 (1, 2); 196 (1, 2); 197 (1-3); 198 (1, 2); 199 (1, 2); 200 (1); 201 (2); 202 (1, 2); 203 (1, 2); 204 (1); 205 (2); 206 (1, 2); 207 (1, 2); 208; 209 (1, 2); 210 (1); 211; 212 (2); 213 (1, 2); 214 (1, 2); 215 (1, 2); 216 (1); 217 (2); 218 (1); 219 (2); 220; 221 (1); 222 (2); 223 (1); 224; 225 (2); 226 (1, 2); 227 (1, 2); 229 (1, 2); 230 (1-2); 231; 232; 233 (2); 234 (1, 2); 235 (1-2); 236 (2); 237 (1, 2); 238 (1, 2); 239 (1-2); 240 (2); 241 (1, 2); 242 (1-2); 243 (2); 244 (1-2); 245 (2); 246 (1, 2); 247 (1, 2); 248 (1, 2); 249 (1, 2); 250 (1, 2); 251 (1-2); 252 (2); 253 (1-2); 254 (2); 255 (1, 2); 256 (1-2); 257 (2); 258 (1, 2); 259 (1-2); 260 (2); 261 (1, 2); 262 (1, 2); 263 (1-2); 264 (2); 265 (1-2); 266 (2); 267 (1, 2); 268 (1, 2); 269 (1, 2); 270 (1, 2); 271 (1-2); 272 (2); 273 (1, 2); 274 (1-2); 275; 276; 277 (2); 278 (1, 2); 279 (1, 2); 280 (1, 2); 281 (1, 2); 282 (1, 2); 283 (1, 2); 284 (1, 2); 285 (1-2); 286 (2); 287 (1-2); 288 (2); 289 (1-12); 290 (1-12); 291 (1-8, 9-10, 11, 12); 292 (1-12); 293 (1-12); 294 (1-10)
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