13991 Thomas Gru''ner/Adalbert Kerber/Reinhard Laue/M. Meringer: Massmol.
MATCH 38 (1998), 173-180.

13993 Ralf Gugisch/Adalbert Kerber a.o.: Molgen-Comb, a software package
for combinatorial chemistry. MATCH 41 (2000), 189-203.