1. Restriction and modification enzymes and their recognition sequences;Roberts;Nucleic Acid Res,1980
2. The preparation and screening of a cDNA clone bank;Williams,1981
3. Detection of specific sequences among DNA fragments separated by gel electrophoresis;Southern;J Mol Biol,1975
4. The use of genomic libraries for the isolation and study of eukaryotic genes;Dahl,1981
5. Transposable elements;Calos;Cell,1980