1. Cineradiographic observations on machine milking;Ardran;J. Dairy Res.,1958
2. Armstrong, D. V. 1980. Personal Communication.
3. Automatic milking machine removal;Armstrong;J. Dairy Sci.,1970
4. The effects of compressed air stimulation on several parameters of milk production;Armstrong;J. Dairy Sci.,1980
5. Vacuum stability in the pipeline milker;Beckley;J. Dairy Sci.,1962