Showalter Scott A, Johnson Eric, Rance Mark, Brüschweiler Rafael
Department of Chemistry and Biochemistry, National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA.
J Am Chem Soc. 2007 Nov 21;129(46):14146-7. doi: 10.1021/ja075976r. Epub 2007 Oct 31.