10.1090/s0002-9939-00-05620-3
Rodriguez, Mabel A., Toranzos, Fausto A.Volume:
128
Language:
english
Journal:
Proceedings of the American Mathematical Society
DOI:
10.1090/s0002-9939-00-05620-3
Date:
May, 2000
File:
PDF, 179 KB
english, 2000