@Misc{BMDB20150174765, title = "Dispositivo para medir la desviaci\'{o}n magn\'{e}tica", author = "Askania-Werke", publisher = "Berl\'{\i}n", URL = "https://bibliotecavirtual.defensa.gob.es/BVMDefensa/es/consulta/registro.do?id=26095", year = "1945", }