1. Photochemical synthesis of 7H-indolo[1,2-a]quinolinium salts - a new ring system
2. K.B. Soroka, A.R. Kośmider, J.A. Soroka, IXth Int. Congress of Heterocyclic Chemistry, Pharmaceutical Society of Japan, Tokyo, 1983, Book of Abstracts, 135 pp
3. K.B. Soroka, Ph.D Thesis, Szczecin, 1982
4. J.A. Soroka, Ph.D Thesis, Szczecin, 1993