1. Isolation of highmolecular weight P-32, labeled influenza virus ribonucleic acid;Agrawal H. O.;Proc. Nat. Acad. Sci. U.S.A.,1966
2. The action of lipids on infectious properties of ribonucleic acid isolated from Ranikhet disease virus;Babbar 0.;Acta Virol.,1968
3. The action of protease on influenza A2 virus;Biddle F.;J. Gen. Virol.,1968
4. Morphological modifications of Semliki Forest virus after treatment by Pronase;Calberg-Bacq C. M.;Acta Virol.,1966
5. Modifications of particles of Newcastle virus disease after treatment by Pronase or Caseinase;Calberg-Bacq C. M.;Acta Virol.,1967