@article{AFST_2012_6_21_2_213_0,
     author = {Delon, Fran\c{c}oise},
     title = {Introduction},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {213--215},
     publisher = {Universit\'e Paul Sabatier, Institut de math\'ematiques},
     address = {Toulouse},
     volume = {6e s{\'e}rie, 21},
     number = {2},
     year = {2012},
     doi = {10.5802/afst.1333},
     mrnumber = {2978100},
     language = {fr},
     url = {http://www.numdam.org/articles/10.5802/afst.1333/}
}