1. Anon., PVP: Polyvinylpyrrolidone, Technical Bulletin 7583-033, General Aniline and Film Corp. (New York 1964.)
2. Anon., PVP: An Annotated Bibliography 1951 to 1966, Vol. I–III, General Aniline and Film Corp. (New York 1967.)
3. Barkin, S., H. P. Frank, andF. R. Eirich I.U.P.A.C. International Symposium on Macromolecular Chemistry (Milan/Turin 1954); published as supplement to: Ricerca Sci. 25A, 844 (1955).
4. Siggia, S., J. Amer. Pharmaceut. Assoc., Sci Edn.44, 201 (1957).
5. Barkin, S. M., Dissertation, Polytechnic Institute of Brooklyn (New York 1957); publ. no. 22650, University Microfilms Inc. (Ann Arbor, Michigan 1966); see also Diss. Abstracts17, 1906 (1957).