@article{BSMF_2001__129_4_505_0,
     author = {Savo, Alessandro},
     title = {A mean-value lemma and applications},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {505--542},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {129},
     number = {4},
     year = {2001},
     doi = {10.24033/bsmf.2406},
     mrnumber = {1894148},
     zbl = {1024.58017},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/bsmf.2406/}
}