@article{NSJOM_1988_18_2a_7,
     author = {Stojakovi\'c Mila},
     title = {Some new types of contractions in 

 {Menger} spaces},
     journal = {Novi Sad Journal of Mathematics},
     pages = {103-109},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {1988},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1988_18_2a_7/}
}