@incollection{AST_1979__61__121_0,
     author = {Lenstra, H. W. Jun.},
     title = {Euclidean ideal classes},
     booktitle = {Journ\'ees Arithm\'etiques de Luminy},
     series = {Ast\'erisque},
     pages = {121--131},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {61},
     year = {1979},
     mrnumber = {556669},
     zbl = {0401.12005},
     language = {en},
     url = {http://www.numdam.org/item/AST_1979__61__121_0/}
}