Chemische Technik

1990. Jg. 42 № 1,2,3,4,5,7

1989. Jg. 41 № 1,2,3,4,5,6,7,8,9,10,11,12

1988. Jg. 40 № 1,2,3,4,5,6,7,8,9,10,11,12