1. Fractionation of transformable bacteria from competent cultures of Bacillus subtilis on renografin gradients;Cahn;J. Bact.,1968
2. Transformation of Neisseria meningitidis by deoxyribonucleates from cells and from culture slime;Catlin;J. Bact.,1960
3. Macromolecular synthesis in Bacillus subtilis during development of the competent state;Dooley;J. Bact.,1971
4. Electron microscopical and cultural features of Neisseria meningitidis competence variants;Frøholm;Acta path. microbiol. scand. Sect. B.,1973
5. Fate of exogenous DNA in Neisseria meningitidis 1. Preparation of 15N-donor DNA and its fate in transformation;Gundersen;Acta path, microbiol. scand. Sect. B.,1973