@article{ASENS_1983_4_16_2_237_0,
     author = {Bonahon, Francis},
     title = {Cobordism of automorphisms of surfaces},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {237--270},
     publisher = {Elsevier},
     volume = {Ser. 4, 16},
     number = {2},
     year = {1983},
     doi = {10.24033/asens.1448},
     mrnumber = {85j:57011},
     zbl = {0535.57016},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.1448/}
}