1. Purification and chemical composition of the protective slime antigen of Pseudomonas aeruginosa;Bartell;Infect. Immun.,1970
2. A new bacteriophage typing set for Pseudomonas aeruginosa. 1. Selection procedure;Bergan;Acta path. microbiol. scand. Sect. B,1972
3. Epidemiological markers for Pseudomonas aeruginosa. 1. Serogrouping, pyocine typing-and their interrelations;Bergan;Acta path. microbiol. scand. Sect. B,1973
4. Epidemiological markers for Pseudomonas aeruginosa. 3. Comparison of bacteriophage typing, serogrouping, and pyocine typing on a heterogeneous clinical material;Bergan;Acta path. microbiol. scand. Sect. B,1973
5. Epidemiological markers for Pseudomonas aeruginosa. 4. Change of O-antigen and phage sensitivity after phage infection in vitro and in vivo of Pseudomonas aeruginosa;Bergan;Acta path. microbiol. scand. Sect. B,1975