1. Introduced animals and extinctions;Atkinson,1989
2. Electrophoretic distinction between Arion hortensis, A. distinctus and A. owenii (Mollusca: Pulmonata);Backeljau;Zoologischer Anzeiger,1987
3. Electrophoresis of albumen gland proteins as a tool to elucidate taxonomic problems in the genus Arion (Gastropoda, Pulmonata);Backeljau;Journal of Medical and Applied Malacology,1989
4. Application of isoelectric focusing in molluscan systematics;Backeljau;The Nautilus,1994
5. Multiple UPGMA and neighbor-joining trees and the performance of some computer programs;Backeljau;Molecular Biology and Evolution,1996