1. Boehringer - Mannheim GmbH 1971
2. Levels of enzymes and metabolites and electrolytes in the blood of healthy Israeli-Friesian dairy cows.;Bogin;Refuah vet.,1974
3. Enzymes and minerals in normal and mastitic milk.;Bogin;Cornell Vet.,1973
4. Levels of enzymes, metabolities and electrolytes in the blood of calves fed on milk or milk substitutes.;Bogin;Refuah vet.,1975