@article{AFST_2014_6_23_2_r1_0,
     author = {Libgober, Anatoly},
     title = {Preface},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {i--ii},
     publisher = {Universit\'e Paul Sabatier, Institut de math\'ematiques},
     address = {Toulouse},
     volume = {Ser. 6, 23},
     number = {2},
     year = {2014},
     doi = {10.5802/afst.1405},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/afst.1405/}
}