RT Journal Article SR Electronic T1 Coarse and Fine Tuning JF Science JO Science FD American Association for the Advancement of Science SP 313 OP 313 DO 10.1126/science.299.5605.313b VO 299 IS 5605 A1 Hines, Pamela J. YR 2003 UL http://science.sciencemag.org/content/299/5605/313.2.abstract AB