M. Piessens-denef

Biohydrogenation of sterols by Eubacterium ATCC 21,408--Nova species.

G. De Pauw, G. Parmentier, H. Eyssen, 1973, European journal of biochemistry.

Role of the cecum in maintaing 5 -steroid- and fatty acid-reducing activity of the rat intestinal microflora.

G. Parmentier, H. Eyssen, M. Piessens-denef, 1972, The Journal of nutrition.