@INPROCEEDINGS {ROSSEL:1991a,
title = {Approaches to germplasm health at the International Institute of Tropical Agriculture (IITA), in Nigeria},
author = {Rossel, H. W. and Cardwell, K. },
booktitle = {Proceedings of the Inter-Center Meeting on Germplasm Health and Movement, edited by E.A. Frison},
year = {1991},
pages = {39--48},
publisher = {International Board for Plant Genetic Resources},
address = {Rome, Italy},
}