1. Wessel, W.S. and Winkler, E.A., Drug Res., 1971, vol. 21, no. 10, p. 1468.
2. Plate, N.A. and Vasil’ev, A.V., Fiziologicheski aktivnye polimery (Physiologically Active Polymers), Moscow: Mir, 1986.
3. Dunkan, R., Nat. Rev. Cancer, 2006, no. 6, p. 688.
4. Nishimura, S.-J., Mitsuoka, E., and Furuki, T., Macromolecules, 1991, vol. 24, no. 15, p. 4236.
5. Kirsh, Yu.E., Poli-N-vinilpirrolidon i drugie poli-Nvinilamidy (Poly-N-Vinylpyrrolidone and Other Poly-N-Vinylamides), Moscow: Nauka, 1998.