@article{1250131157,
author = {Rosenberg, I.},
title = {Strongly rigid relations},
journal = {Rocky Mountain J. Math.},
volume = {3},
number = {4},
year = {1973},
pages = { 631-640},
language = {en},
url = {http://dml.mathdoc.fr/item/1250131157}
}
Rosenberg, I. Strongly rigid relations. Rocky Mountain J. Math., Tome 3 (1973) no. 4, pp. 631-640. http://gdmltest.u-ga.fr/item/1250131157/