Kay, LE; Torchia, DA; Bax, A (14 November 1989). "Backbone dynamics of proteins as studied by 15N inverse detected heteronuclear NMR spectroscopy: application to staphylococcal nuclease". Biochemistry. 28 (23): 8972–9. doi:10.1021/bi00449a003. PMID2690953.
Kay, LE; Torchia, DA; Bax, A (14 November 1989). "Backbone dynamics of proteins as studied by 15N inverse detected heteronuclear NMR spectroscopy: application to staphylococcal nuclease". Biochemistry. 28 (23): 8972–9. doi:10.1021/bi00449a003. PMID2690953.