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1982
K. Damme, Eichinger, H., Willeke, H., and Pirchner, F., Heat production of two different lines and their reciprocal crosses, in Proceedings of the World Congress on Genetics applied to Livestock Production., 1982, vol. 8. Symposia (2), pp. 835-840. (264.08 KB)
H. Willeke, Heterosis of different egg-laying traits, in reciprocal crosses of brown egg-layers, in Proceedings of the World Congress on Genetics applied to Livestock Production., 1982, vol. 8. Symposia (2), pp. 841-846. (307.96 KB)