1. Electron microscopy of superhelical circular lambda DNA;Bode V. C.;J. Mol. Biol.,1968
2. Sedimentation rate as a measure of molecular weight of DNA;Burgi E.;Biophys. J.,1963
3. Studies of E. coli sex factors. III. Covalently closed F'Lac DNA molecules;Freifelder D.;J. Mol. Biol.,1968
4. Molecular weights of coliphages and coliphage DNA. IV. Molecular weights of DNA from bacteriophages T4, T5 and T7 and the general problem of determination of M;Freifelder D.;J. Mol. Biol.,1970
5. The high molecular weight of the fowlpox virus genome;Gafford L. G.;J. Mol. Biol.,1967