@article{NSJOM_1999_29_2a_2,
     author = {D. 

 Acketa},
     title = {An 

 inequality related to two integer sequences satisfying an order condition},
     journal = {Novi Sad Journal of Mathematics},
     pages = {7-12},
     year = {1999},
     volume = {29},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1999_29_2a_2/}
}