@article{NSJOM_1991_21_1a_0,
     author = {Herceg Dragoslav},
     title = {On a modification of 

 nonlinear overrelaxation methods},
     journal = {Novi Sad Journal of Mathematics},
     pages = {1-13},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {1991},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1991_21_1a_0/}
}