@article{NSJOM_1989_19_1a_5,
     author = {Stankovi\'c Bogoljub},
     title = {S-asymptotic of solutions of the 

 elliptic partial differential equation},
     journal = {Novi Sad Journal of Mathematics},
     pages = {65-72},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1989},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1989_19_1a_5/}
}