Jurgen F. Doreleijers Wim F. Vranken Christopher F. Schulte John L. Markley Eldon L. Ulrich Gert Vriend Geerten W. Vuister NRG-CING: integrated validation reports of remediated experimental biomolecular NMR data and coordinates in wwPDB. 519-524 2012 40 Nucleic Acids Research Database-Issue http://dx.doi.org/10.1093/nar/gkr1134 db/journals/nar/nar40.html#DoreleijersVSMUVV12