Kuszewski J, Gronenborn A M, Clore G M
Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892-0520, USA.
J Magn Reson B. 1995 Jun;107(3):293-7. doi: 10.1006/jmrb.1995.1093.