@article{IJOPCM_2009__2_4_233716,
     author = {Ngoc, Ngo Phuoc Nguyen and Van Vinh, Nguyen and Hien, Pham Thi Thao},
     title = {Generalization of some inequalities for the gamma function.},
     journal = {International journal of open problems in computer science and mathematics},
     pages = {532},
     year = {2009},
     volume = {2},
     number = {4},
     zbl = {1206.33019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IJOPCM_2009__2_4_233716/}
}