@article{ASENS_2013_4_46_5_723_0,
     author = {Crainic, Marius and Struchiner, Ivan},
     title = {On the linearization theorem for proper {Lie} groupoids},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {723--746},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {Ser. 4, 46},
     number = {5},
     year = {2013},
     doi = {10.24033/asens.2200},
     language = {en},
     url = {http://archive.numdam.org/articles/10.24033/asens.2200/}
}