@article{1102636166, author = {Hoffman, Michael E.}, title = {Multiple harmonic series.}, journal = {Pacific J. Math.}, volume = {156}, number = {2}, year = {1992}, pages = { 275-290}, language = {en}, url = {http://dml.mathdoc.fr/item/1102636166} }
Hoffman, Michael E. Multiple harmonic series.. Pacific J. Math., Tome 156 (1992) no. 2, pp. 275-290. http://gdmltest.u-ga.fr/item/1102636166/