Quang Hinh, T., and N. Van Den. “THE EXAMINATION SOME AMINO ACIDS BY THE VIBRATIONAL SPECTRA AND QUANTUM COMPUTATION METHODS (AB INITIO)”. Science and Technology Development Journal, Vol. 6, no. 9&10, Oct. 2003, pp. 96-04, doi:https://doi.org/10.32508/stdj.v6i9&10.3366.