@incollection{XUPS_2007____127_0,
     author = {Courtois, Gilles},
     title = {Sur les valeurs aux entiers des~formes~quadratiques r\'eelles},
     booktitle = {Syst\`emes dynamiques, groupes de matrices et~applications~arithm\'etiques},
     series = {Journ\'ees math\'ematiques X-UPS},
     pages = {127--162},
     publisher = {Les \'Editions de l{\textquoteright}\'Ecole polytechnique},
     year = {2007},
     doi = {10.5802/xups.2007-03},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.5802/xups.2007-03/}
}