@incollection{AST_1990__183__69_0,
     author = {Bost, Jean-Beno{\^\i}t and Mestre, Jean-Fran\c{c}ois and Moret-Bailly, Laurent},
     title = {Sur le calcul explicite des {\guillemotleft}~classes de {Chern~{\guillemotright}} des surfaces arithm\'etiques de genre 2},
     booktitle = {S\'eminaire sur les pinceaux de courbes elliptiques (\`a la recherche de {\guillemotleft}Mordell effectif{\guillemotright})},
     editor = {Spziro Lucien},
     series = {Ast\'erisque},
     pages = {69--105},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {183},
     year = {1990},
     mrnumber = {1065156},
     zbl = {0731.14017},
     language = {fr},
     url = {http://www.numdam.org/item/AST_1990__183__69_0/}
}