"Phthalocyanin" . . "Phthalocyanines Congresses." . . . . "Phthalocyanin-Polymere." . . "Kongreß." . . "Symposium Katalyse an Phthalocyaninen. <1972, Hamburg>." . . "Katalyse" . . "Katalyse." . "Catalysis." . . "Phthalocyanines." . . "Catalysis Congresses." . . . "Conference papers and proceedings" . "Katalyse an Phthalocyaninen" . "Conference proceedings" . . . . . . . . . . "Katalyse an phthalocyaninen : Symposium am 10. Mai 1972 in Hamburg" . "Katalyse an Phthalocyaninen : Symposium, 10.Mai 1972, Hamburg" . "Katalyse an Phthalocyanien" . . . . . "Kongreß" . "Katalyse an Phthalocyaninen : Symposium am 10. Mai 1972 in Hamburg; 23 Tab" . . "Katalyse an Phthalocyaninen Symposium am 10. Mai 1972 in Hamburg; [mit] 23 Tab" . . . . . "Hamburg (1972)" . . . . . "Katalyse an Phthalocyaninen : Symposium am 10. Mai 1972 in Hamburg" . . . . .