|
|
Internet Archive
|
|
Preserved
|
2025-08-08
|
|
|
1 to 26
|
|
|
CLOCKSS Archive
|
|
Preserved
|
2026-06-01
|
|
|
1 to 26
|
|
|
Portico
|
|
Preserved
|
2026-06-04
|
|
|
Preserved : 1961: 1(1-4, Index), 1962: 2(1-4, Index), 1963/1964: 3(1-4, Index), 1964/1965: 4(1-4, Index), 1965: 5(1-4, Index), 1966: 6(1-4, Index), 1967: 7(1-4, Index), 1968: 8(1-4, Index), 1969: 9(1-4, Index), 1970: 10(1-4, Index), 1971: 11(1-4, Index), 1972: 12(1-4, Index), 1973: 13(1-4, Index), 1974: 14(1-4, Index), 1975: 15(1-4, Index), 1976: 16(1-4, Index), 1977: 17(1-4, Index), 1978: 18(1-4, Index), 1979: 19(1-4, Index), 1980: 20(1-4, Index), 1981: 21(1-4), 1982: 22(1-4, Index), 1983: 23(1-4, Index), 1984: 24(1-4, Index), 1985: 25(1-4, Index), 1986: 26(1-4)
|
|
|
Scholars Portal
|
|
Preserved
|
2026-03-19
|
|
|
Preserved : 1 (1-2, 3, 4); 2 (Index, 1 to 4); 3 (Index, 1 to 4); 4 (Index, 1 to 4); 5 (Index, 1-2, 3, 4); 6 (Index, 1 to 4); 7 (Index, 1 to 4); 8 (Index, 1 to 4); 9 (Index, 1 to 4); 10 (Index, 1 to 4); 11 (Index, 1 to 4); 12 (Index, 1 to 4); 13 (Index, 1 to 4); 14 (Index, 1 to 4); 15 (Index, 1 to 4); 16 (Index, 1 to 4); 17 (Index, 1 to 4); 18 (Index, 1 to 4); 19 (Index, 1 to 4); 20 (Index, 1, 2, 3-4); 21 (1, 2, 3-4); 22 (Index, 1 to 4); 23 (Index, 1, 2-3, 4); 24 (Index, 1 to 4); 25 (Index, 1 to 4); 26 (1 to 4); 28 (1 to 4)
|
|
|
Portico
|
|
Preserved
|
2026-06-04
|
|
|
Preserved : 1988: 28(1-4)
|
|
|
National Library of the Netherlands
|
|
Preserved
|
2024-12-15
|
|
|
Preserved : 1 (1-2, 3, 4); 2 (1, I, 2-4); 3 (1, 2, 4); 4 (1, 2, 4); 5 (1-2, 3, 4); 6 (1-4); 7 (1, I, 2-4); 8 (1-4); 9 (1-4); 10 (1, I, 2, 4); 11 (1, I, 2-4); 12 (1, I, 2-4); 13 (1, I, 2-4); 14 (1-4); 15 (1, I, 2, 4); 16 (1, I, 2-4); 17 (1, I, 2-4); 18 (1, I, 2-4); 19 (1, I, 2-4); 20 (1, I, 2, 3-4); 21 (1, 2, 3-4); 22 (1, I, 3, 4); 23 (1, I, 2-3, 4); 24 (1, I, 2-4); 25 (1-4); 26 (1-4)
|
