Cyto genetic studies in wheat 11. sr 9g for reaction to puccinia graminis tritici Mcintosh, R.A.; Luig, N.H.; Johnson, R.; Hare, R.A. Zeitschrift fuer Pflanzenzuechtung 87(4): 274-289 1981 https://eurekamag.com/research/005/081/005081972.php