@article{BSMF_2007__135_1_1_0,
     author = {Belliart, Michel},
     title = {On the rigidity of webs},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {1--24},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {135},
     number = {1},
     year = {2007},
     doi = {10.24033/bsmf.2523},
     zbl = {1156.53013},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/bsmf.2523/}
}