TY  - BOOK
AU  - LUIG, Norbert H
TI  - Survey of virulence genes in wheat stem rust puccinia graminis f sp tritici
T2  - Advances in plant breeding supplements to journal of plant breeding; 11
U1  - 632.4:633.11 
PY  - 1983///
CY  - Berlin
PB  - Verlag
ER  -