compiled by the Beilstein-Institut für Literatur der Organischen Chemie ; executive editor, Reiner Luckenbach ; 5th suppl. ser., v. 27, pt. 14 - 5th suppl. ser., collective indexes, formura index for v. 27, C[25]-C[204]. -- 4th ed. -- Beilstein Informationssysteme, c1984-.