1. Adler HJ, Fisher WD, Cohen A, Hardigree AA van (1966) Proc Natl Acad Sci USA 75:321?326
2. Birnboim NC, Doly J (1979) Nucleic Acids Res 7:1513?1523
3. Bohnert HJ, Crouse EJ, Schmitt JM (1982) In: Parthier B, Boulter D (eds) Nucleic acids and proteins in plants II, Encyclopedia of plant physiology, vol 14B. Springer, New York, p 475
4. Bolivar F, Backman K (1979) Meth Enzymd 68:245?267
5. Bolivar F, Rodriguez R, Greene PJ, Betlach M, Heyneker HL, Boyer HW, Crosa J, Falkow S (1979) Gene 2:95?113