@Book{RANME20161296494, title = "T\'{e}lescope et microscope", author = "ZURCHER", publisher = "Paris : Librairie Pagnerre", editor = "Librairie Pagnerre", URL = "http://bibliotecavirtual.ranm.es/ranm/es/consulta/registro.do?id=31649", year = "18uu", }