@article{ASENS_1987_4_20_4_505_0, author = {Lohou\'e, No\"el}, title = {Estimation des fonctions de {Littlewood-Paley-Stein} sur les vari\'et\'es riemanniennes \`a courbure non positive}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, pages = {505--544}, publisher = {Elsevier}, volume = {4e s{\'e}rie, 20}, number = {4}, year = {1987}, doi = {10.24033/asens.1542}, zbl = {0636.43002}, mrnumber = {89c:42024}, language = {fr}, url = {http://www.numdam.org/articles/10.24033/asens.1542/} }