@article{10_4064_cm6859_5_2016,
     author = {Horst Alzer and Man Kam Kwong and Hao Pan},
     title = {Combinatorial identities and trigonometric inequalities},
     journal = {Colloquium Mathematicum},
     pages = {291--305},
     publisher = {mathdoc},
     volume = {145},
     number = {2},
     year = {2016},
     doi = {10.4064/cm6859-5-2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm6859-5-2016/}
}