1. Purification studies on Lansing poliomyelitis virus. II. Analytical electron microscopic identification of the infectious particle in preparations of high specific infectivity;Bachrach;J. Immunol.,1954
2. The use of spraying methods and of volatile suspending media in the preparation of specimens for electron microscopy;Backus;J. Appl. Phys.,1950
3. The number of elementary bodies per 50% lethal dose of meningo-pneumonitis virus as determined by electron microscopic counting;Crocker;J. Immunol.,1954
4. Counts of influenza particles;Donald;J. Gen. Microbiol.,1954
5. Plaque formation and isolation of pure lines with poliomyelitis viruses;Dulbecco;J. Exptl. Med.,1954