00257nam a2200097Ia 4500008004100000082001500041100003500056245003200091260002800123300000800151140113s9999    xx            000 0 und d  a631.5   L9  a"Sneep, J. & Hendrikson, J.T."  aPlant Breeding Perspectives  a1979bPUDOCcWageningen  a435