@article{NSJOM_1994_24_2a_5,
     author = {Taka\v{c}i {\DJ}ur{\dj}ica},
     title = {The operator {Green} 

 function},
     journal = {Novi Sad Journal of Mathematics},
     pages = {53-61},
     year = {1994},
     volume = {24},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1994_24_2a_5/}
}