Courant, Richard, Hilbert, David (university Of K¿nigsberg (2) Blum, Richard (2) Taylor, Allen G. (database Consultant, Blum, Richard (2) Depuente, Vanessa, Snyder, Richard W. (philadelphia College Of Osteopathic Medicine), Schoenborn, Barry (california State University (1) Baker, Richard W. (membrane Technology And Research (1)