@article{GDZPPN002357100,
title = {A study of graded extremal rings and of monominal rings.},
journal = {Mathematica Scandinavica},
volume = {50},
year = {1982},
pages = {22-34},
zbl = {0498.13012},
url = {http://dml.mathdoc.fr/item/GDZPPN002357100}
}
Fröberg, Ralf. A study of graded extremal rings and of monominal rings.. Mathematica Scandinavica, Tome 50 (1982) pp. 22-34. http://gdmltest.u-ga.fr/item/GDZPPN002357100/