@article{EMJ_2012_3_1_a10,
     author = {M. A. Sadybekov and B. K. Turmetov},
     title = {On analogues of periodic boundary value problems for the {Laplace} operator in a ball},
     journal = {Eurasian mathematical journal},
     pages = {143--146},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EMJ_2012_3_1_a10/}
}