@article{CMFD_2011_42_a1,
     author = {F. Alharbi and V. M. Zakalyukin},
     title = {Quasi-projections of surfaces with boundaries},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {15--22},
     publisher = {mathdoc},
     volume = {42},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2011_42_a1/}
}