@article{GDZPPN002054396, title = {Les formes diff\'erentielles harmoniques.}, journal = {Commentarii mathematici Helvetici}, volume = {19}, year = {1946}, pages = {1-49}, zbl = {0063.00378}, url = {http://dml.mathdoc.fr/item/GDZPPN002054396} }
de Rham, Georges de; Bidal, Pierre. Les formes différentielles harmoniques.. Commentarii mathematici Helvetici, Tome 19 (1946) pp. 1-49. http://gdmltest.u-ga.fr/item/GDZPPN002054396/