@article{NSJOM_1994_24_1a_32,
     author = {Petkovi\'c Miodrag S. and Trajkovi\'c Miroslav},
     title = {On {Dochev's} relation in 

 parallel and serial mode},
     journal = {Novi Sad Journal of Mathematics},
     pages = {359-367},
     year = {1994},
     volume = {24},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1994_24_1a_32/}
}