BOUŘ, P., BUDĚŠÍNSKÝ, M., ŠPIRKO, V., KAPITÁN, J., ŠEBESTÍK, J., SYCHROVSKÝ, V. A complete set of NMR chemical shifts and spin-spin coupling constants for L-Alanyl-L-Alanine zwitterion and analysis of its conformational behavior. Journal of the American Chemical Society. 2005, 127(-), 17079-17089. ISSN 0002-7863. E-ISSN 1520-5126.