@Book{RANME20161197036, title = "Tactique op\'{e}ratoire des voies biliaires", author = "STERN, W.M", publisher = "Paris : Gaston Doin et Cie", editor = "Gaston Doin et Cie", URL = "http://bibliotecavirtual.ranm.es/ranm/es/consulta/registro.do?id=21703", year = "1929", }