@Book{BDG201891696147, title = "De l\textquotesingle emploi des observations azimutales : pour la d\'{e}termination des ascensions droites et des d\'{e}clinations des \'{e}toiles", author = "Liais, Emm", publisher = "Cherbourg : [s.n.]", editor = "[s.n.]", URL = "http://biblioteca.galiciana.gal/es/consulta/registro.do?id=396471", year = "1858", }