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ROWLAND S. J., 1937, Journal of Dairy Research, V8, P6, DOI 10.1017/S0022029900001898
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ROWLAND S. J., 1933, Journal of Dairy Research, V5, P46, DOI 10.1017/S0022029900000911
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ROWLAND S. J., 1938, Journal of Dairy Research, V9, P42, DOI 10.1017/S0022029900002296
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ROWLAND SJ, 1937, J DAIRY RES, V8, P1