1. private communication, 1955
2. Report at the Conference Européene des Herbages, Paris, June, 1954
3. Thesis presented to the Faculty of Medicine and Pharmacy, École Nationale Vétérinaire de Lyon, 1952
4. , , , & , Bull. Acad. vét. Fr., 1953, (9), 487
5. Rev. Méd., vét., 1952, No. 1, 1