@base . , ; "Collection of Czechoslovak Chemical Communications." ; ; ; ; ; ; ; "Collection of Czechoslovak Chemical Communications (On-line)" , "Collection of Czechoslovak Chemical Communications." ; ; "http://cccc.uochb.cas.cz" . a ; "20230217164624.473812"^^ ; ; . . a . "Czech Republic" . a ; . a , ; "Collection of Czechoslovak Chemical Communications (On-line)" . a ; "0010-0765" ; .