AU  - Kranz,Jurgen
TI  - Epidemics of plant diseases: Mathematical Analysis and Modeling / 
T2  - Ecological Studies 13, 
SN  - 0412136503
U1  - 581.2 
PY  - 1974///
CY  - London : 
PB  - Chapman and Hall , 
KW  - Plant Pathology
ER  -