title: The superhelix density of bacteriophage PM2 DNA, determined by a viscometric method.
authors.affiliation: Department of Medical Enzymology, Laboratory of Biochemistry, University of Amsterdam, Amsterdam, The Netherlands
authors.forename: E M.
authors.initials: EM
authors.lastname: Smit
authors.forename: P
authors.initials: P
authors.lastname: Borst