1. Production Studies on Experimental Farms Dairy Herds. I. Age Correction of 180-Day Milk Yield;Hickman;Canadian J. Animal Sci.,1957
2. Untersuchungen uber die Variation in der Euter und Strich form der Kuhe;Johansson;Z. Tierzücht. Züchtungsbiol.,1957
3. The Influence of Yield, Udder Pressure. Size of Teats and of the Teat Orifice on the Rate of Milking;Johansson;Z. Tierzücht. Züchtungsbiol.,1960
4. The Relationship of Machine Milking to the Incidence and Severity of Mastitis;Meigs;USDA Bull.,1949
5. Machine Milking. Ministry of Agriculture, Fisheries and Food, Great Britain, Bull. No. 177. 1959.