1. Huffstutler MC: Analytical design fundamentals of the Omniscience cardiac valve prosthesis. Presentation at the ASTM-Symposium, Titanium and its Alloys for surgical Implants, Phoenix, 1981
2. De Wall RA, Mikhail AA: Omniscience cardiac valve prosthesis. Clinical review I. Presentation at the ACC Annual Conference at Snowmass, Colo., 1981
3. Achatzy R, Anyanwn E, Klinke F, Jelesijevic V, St Muller U, Dittrich H: Omniscience, Prosthetic Heart Valve Clinical Trial. Presentation at the Second International Workshop, Innsbruck, Austria, 1981