@article{GDZPPN002357127,
title = {On the double Poincar\'e series of the enveloping algebras of certain graded Lie algebras.},
journal = {Mathematica Scandinavica},
volume = {50},
year = {1982},
pages = {45-58},
zbl = {0499.16018},
url = {http://dml.mathdoc.fr/item/GDZPPN002357127}
}
Jacobsson, Calle. On the double Poincaré series of the enveloping algebras of certain graded Lie algebras.. Mathematica Scandinavica, Tome 50 (1982) pp. 45-58. http://gdmltest.u-ga.fr/item/GDZPPN002357127/