David K Keefer1, Matthew C Larsen. Show Affiliations » 1. U.S. Geological Survey, Menlo Park, CA 94025, USA. dkeefer@usgs.gov
Abstract
Year: 2007 PMID: 17525325 DOI: 10.1126/science.1143308
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728