1. Soares S. G., Oliveira L. L., Protein Pept. Lett., 2009, 16, 913
2. Jiang J., Han H., Ma C., Wang J., Ying W., Qian X., Chin. J. Anal. Chem., 2012, 40, 1019
3. Zhao Z., Qiu H., Yao J., Chen Y., Chem. J. Chinese Universities, 2013, 34(12), 2704
4. Ohsaka A., Jpn. J. Med. Sci. Biol., 1960, 13, 199
5. Bjarnason J. B., Tu A. T., Biochemistry, 1978, 17, 3395