@Book{BVPB20110090692, title = "The agreement of eastern with western astronomy", author = "Roso de Luna, Mario, (1872-1931", publisher = "London : The Gresham Press", editor = "The Gresham Press", URL = "https://bvpb.mcu.es/es/consulta/registro.do?id=449862", year = "1901", }