Bachrach S, Berry R S, Blume M, von Foerster T, Fowler A, Ginsparg P, Heller S, Kestner N, Odlyzko A, Okerson A, Wigington R, Moffat A
Department of Chemistry, Northern Illinois University, DeKalb 60115, USA.
Science. 1998 Sep 4;281(5382):1459-60. doi: 10.1126/science.281.5382.1459.