@article{NSJOM_1988_18_1a_9,
     author = {Pap Endre},
     title = {Nikodym type theorem 

 for metric valued x0-exhaustive set functions},
     journal = {Novi Sad Journal of Mathematics},
     pages = {101-109},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1988},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1988_18_1a_9/}
}