@article{UZERU_2009_1_a4,
     author = {H. S. Harutyunyan and H. H. Igityan},
     title = {On increasing hazard rate of waiting time in the $M|G|1|\infty$ model},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {24--28},
     publisher = {mathdoc},
     number = {1},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2009_1_a4/}
}