1. Note on Ariunculus austriacus, n.sp., from the Alps in Austria;Babor;Proceedings of the Malacological Society of London,1898
2. Ueber die Nacktschnecken der Grazer Umgegend;Babor;Verhandlungen der Deutsche Zoologische Gesellschaft,1900
3. On the infrageneric systematics of the genus Arion Férussac, 1819 (Mollusca, Pulmonata);Backeljau;Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen, Biologie,1990
4. An electrophoretic characterisation of three paratypes of Arion fagophilus De Winter, 1986, with notes on the subgeneric division of the genus Arion Férussac, 1819 (Mollusca, Pulmonata);Backeljau;Zeitschrift für zoologische Systematik und Evolutionsforschung,1987
5. Comparative electrophoretic analyses of three European Carinarion species (Mollusca, Pulmonata, Arionidae);Backeljau;Zoologica Scripta,1987