@article{KJM_2007_30_1_a1,
     author = {Bo\v{s}ko S. Jovanovi\'c},
     title = {About some types of boundary value problems with interfaces},
     journal = {Kragujevac Journal of Mathematics},
     pages = {13 - 26},
     publisher = {mathdoc},
     volume = {30},
     number = {1},
     year = {2007},
     zbl = {1199.35067},
     url = {http://geodesic.mathdoc.fr/item/KJM_2007_30_1_a1/}
}