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Authors: Waldmann, A Ropstad, E Landsverk, K Sorensen, K Solverod, L Dahl, E

Citation: A. Waldmann et al., Level and distribution of progesterone in bovine milk in relation to storage in the mammary gland, ANIM REPROD, 56(2), 1999, pp. 79-91

Authors: Reksen, O Tverdal, A Landsverk, K Kommisrud, E Boe, KE Ropstad, E

Citation: O. Reksen et al., Effects of photointensity and photoperiod on milk yield and reproductive performance of Norwegian Red cattle, J DAIRY SCI, 82(4), 1999, pp. 810-816