@article{SMJ2_2018_44_1-2_a11,
     author = {Choban, Mitrofan M. and Kenderov, Petar S. and Revalski, Julian P.},
     title = {Fragmentability of open sets via set-valued mappings},
     journal = {Serdica Mathematical Journal},
     pages = {213--226},
     publisher = {mathdoc},
     volume = {44},
     number = {1-2},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2018_44_1-2_a11/}
}