TY  - TH
AU  - Verhulst,N.
TI  - Conservation agriculture in the highlands of Mexico:  an efficient distribution in time and space of crop growth and crop growth resources?
PY  - 2007///
CY  - Leuven (Belgium)
PB  - Katholieke Universiteit Leuven, 
N1  - Nationality: BE; Thesis (B. Sc.)
ER  -