1. DNA insertion elements, plasmids and episomes;Bukhari,1977
2. Epidemiology and classification of plasmids;Datta,1975
3. Transposable genetic elements;Cohen;Sci. Amer.,1980
4. The molecular relatednes among α-hemolytic plasmids from various incompatibility groups;De La Cruz;Plasmid,1980
5. Untersuchung zur Mobilisierung nichtkonjugativer R-Faktoren;Dulio,1979