00291nam a2200097Ia 4500008004100000082002400041100004400065245003700109260003700146300001000183140113s9999    xx            000 0 und d  a632.937(620.169) N3  a" Jacobs, T. H. and  Parlevliet, J. E."  aDurability of disease resistance  b"Kluwer Academic publishers, N3"  a375p.