Authors: S Anderson; A T Bankier; B G Barrell; M H de Bruijn; A R Coulson; J Drouin; I C Eperon; D P Nierlich; B A Roe; F Sanger; P H Schreier; A J Smith; R Staden; I G Young Journal: Nature Date: 1981-04-09 Impact factor: 49.962
Authors: Mim A Bower; Matthew Spencer; Shuichi Matsumura; R Ellen R Nisbet; Christopher J Howe Journal: Nucleic Acids Res Date: 2005-05-03 Impact factor: 16.971