van Duivenbooden, N and Pala, M and Studer, C and Bielders, C L and Beukes, D J
(2000)
Cropping systems and crop complementarity in dryland agriculture to increase soil water use efficiency: a review.
NJAS - Wageningen Journal of Life Sciences, 48 (3).
pp. 213-236.
ISSN 15735214