@INPROCEEDINGS {BIRANG:2002a, title = {Earthworm casting activity in cropped and undisturbed Chromolaena odorata and young forest fallow in southern Cameroon}, author = {Birang, A. and Hauser, S. and Brussaard, L. }, booktitle = {Proceedings}, year = {2002}, location = {Cardiff, Wales}, note = {Paper presented at: The 7th International Symposium on Earthwor, Ecology, 1-6 September}, }