ETTEMA, F. Current Progress of Milking Robot in the Nethelands. Proceeding of the First International on Symposium, Agricultural Technique for Cold Regions (ISAC), 1989. 1989, 173-174
SPENCER, S. Robotic Milkers. Proceeding of the National Milking Center Design Conference, 1992. 1992, 312
ROSSING, W. Robotic Milking : State of Art. Proceeding of the Third International Daily Housing, 1994. 1994, 92-101
HARSH, S. B. Automatic Milking Systems : An Economic Evaluation. Proceeding of the Third International Daily Housing, 1994. 1994, 102-110