@article{NSJOM_1978_8_Nonea_14,
     author = {Herceg Dragoslav},
     title = {On nonequidistant 

 difference formulae of the {Hermite} type},
     journal = {Novi Sad Journal of Mathematics},
     pages = {95-99},
     publisher = {mathdoc},
     volume = {8},
     year = {1978},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1978_8_Nonea_14/}
}