@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},
     mrnumber = {89c:42024},
     zbl = {0636.43002},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/asens.1542/}
}