TY  - BOOK
AU  - Frantzen, Jos
AU  - 
TI  - Studies on the weed pathosystem cirsium arvense - puccinia punctiformis
SN  - 90-5485-211-9
U1  - 632.51:632.937 
PY  - 1994///
CY  - Wageningen
PB  - DLO-Centre for Agrobiological Research
KW  - Biological weed control
ER  -