@Misc{FIL20130000619, title = "Bolet\'{\i}n de estad\'{\i}stica e investigaci\'{o}n operativa [Texto impreso] :]BEIO", publisher = "Madrid : SEIO", editor = "SEIO", URL = "http://www.larramendi.es/es/consulta/registro.do?id=9747", year = "2009", }