@article{CRMATH_2022__360_G1_89_0, author = {Feng Qi}, title = {Decreasing properties of two ratios defined by three and four polygamma functions}, journal = {Comptes Rendus. Math\'ematique}, pages = {89--101}, publisher = {Acad\'emie des sciences, Paris}, volume = {360}, year = {2022}, doi = {10.5802/crmath.296}, language = {en}, }