00275nam a2200097Ia 4500008004100000082002600041100001900067245005000086260003300136300000800169140113s9999    xx            000 0 und d  a581.13:582.35/.9   L6  a"Raghavan, V."  aExperimental Embryogenesis in vascular plants  a1976bAcademic PresscLondon  a603