TY - GEN PB - Verlag Chemie L1 - http://delibra.bg.polsl.pl/Content/2078/Die%20chemische%20industrie%201940.%20nr6.pdf L2 - http://delibra.bg.polsl.pl/Content/2078 KW - Chemie T1 - Die Chemische Industrie, 1940, Jg 63, Nr 6 UR - http://delibra.bg.polsl.pl/dlibra/publication/edition/2078 ER -