1
Academic Journal
Authors: Schmidt, Klaus D.
Superior Title: Proceedings of the American Mathematical Society, 1988 Apr 01. 102(4), 862-866.
Access URL: https://www.jstor.org/stable/2047324
2
Academic Journal
Authors: Schmidt, Klaus D.
Superior Title: Proceedings of the American Mathematical Society, 1990 Apr 01. 108(4), 905-911.
Access URL: https://www.jstor.org/stable/2047945