“Synthesis and Spectral Properties of 1,3,4-Oxadiazol-2-Yl-Coumarines Containing 3,7,12-Threehydroxycholic Fragment”. 2015. V. N. Karazin Kharkiv National University Bulletin. Chemical Series, no. 25 (December): 46-53. https://doi.org/10.26565/2220-637X-2015-25-06.