| Auteur(s) | Westrich, P. |
| Jaar | 1996 |
| Titel | Habitat requirements of Central European bees and the problems of partial habitats. In: A. Matheson, S. L. Buchmann, C. O’Toole, P. Westrich, and I.. Williams, editors. (eds), The conservation of bees. , pp. 1–16. Linnean Society Symposium Series, Academic Press, London. |