Authors: Richard L Sandberg; Changyong Song; Przemyslaw W Wachulak; Daisy A Raymondson; Ariel Paul; Bagrat Amirbekian; Edwin Lee; Anne E Sakdinawat; Chan La-O-Vorakiat; Mario C Marconi; Carmen S Menoni; Margaret M Murnane; Jorge J Rocca; Henry C Kapteyn; Jianwei Miao Journal: Proc Natl Acad Sci U S A Date: 2007-12-27 Impact factor: 11.205