@Book{RANME20161487489, title = "The w-value detector determination of oxygen and anaesthetic vapours in expired air", author = "WARREN, B. C. H", publisher = "London : J. \& A. Churchill", ISBN = "ISBN 700014284", editor = "J. \& A. Churchill", URL = "http://bibliotecavirtual.ranm.es/ranm/es/consulta/registro.do?id=50748", year = "1969", }