Orin Chein
Temple University, Philadelphia, Penn., USA
TBD
mathscidoc:1701.331367
W. Fulks
University of Colorado, Boulder, Colorado
R. B. Guenther
University of Colorado, Boulder, Colorado
TBD
mathscidoc:1701.331366
Sigbert Jaenisch
Justus-Liebig-Universität, Giessen, Germany
TBD
mathscidoc:1701.331365