@article{PIM_2013_N_S_93_107_a10,
     author = {Tran Van An and Luong Quoc Tuyen},
     title = {$L${-Ponomarev's} {System} and {Images} of {Locally} {Separable} {Metric} {Spaces}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {133 },
     publisher = {mathdoc},
     volume = {_N_S_93},
     number = {107},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_2013_N_S_93_107_a10/}
}