@article{1102701404,
author = {Landes, Thomas R.},
title = {Normal structure and the sum-property.},
journal = {Pacific J. Math.},
volume = {125},
number = {2},
year = {1986},
pages = { 127-147},
language = {en},
url = {http://dml.mathdoc.fr/item/1102701404}
}
Landes, Thomas R. Normal structure and the sum-property.. Pacific J. Math., Tome 125 (1986) no. 2, pp. 127-147. http://gdmltest.u-ga.fr/item/1102701404/