title: The sign of the B(2u) cotton effect and the conformation of pyrimidine and azapyrimidine nucleosides.
authors.affiliation: Institut de Biologie Physico-Chimique, Laboratoire de Biochimie Biologique associé au C.N.R.S., 13, rue P. et M. Curie, 5è, Paris, France
authors.forename: B
authors.initials: B
authors.lastname: Pullman
authors.forename: H
authors.initials: H
authors.lastname: Berthod