00362nam a2200097Ia 4500008004100000082002200041100002000063245008000083260002500163490007600188220204s9999 xx 000 0 und d a632.4:633.11bLUI aLUIG, Norbert H 0aSurvey of virulence genes in wheat stem rust puccinia graminis f sp tritici aBerlinbVerlagc1983 aAdvances in plant breeding supplements to journal of plant breeding; 11