TY  - BOOK
AU  - Czechoslorak Academy of Agril. and Res. Instt. of Crop production
AU  - Czechoslorak Academy of Agril. and Res. Instt. of Crop production
TI  - Annals of the Research Instt. for crop production
PY  - 1986///
PB  - CAA and Res. Intt. for crop production
ER  -