@article{KJM_2005_28_1_a17,
     author = {Marija Kujumdzieva-Nikoloska and Jordanka Mitevska},
     title = {Conditions of existence quasiperiodic solutions for some nonlinear differential equations of second order and third power},
     journal = {Kragujevac Journal of Mathematics},
     pages = {215 - 224},
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {2005},
     url = {http://geodesic.mathdoc.fr/item/KJM_2005_28_1_a17/}
}