@article{ZR_1997_7_15_a3,
     author = {M. Nedeljkov and D. Peri\v{s}i\'c and S. Pilipovi\'c},
     title = {Pseudodifferential {Operators}},
     journal = {Zbornik radova},
     pages = {111 },
     publisher = {mathdoc},
     volume = {7},
     number = {15},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZR_1997_7_15_a3/}
}