@article{ZNSL_1983_130_a11,
     author = {N. N. Ljashenko},
     title = {The weak convergence of step processes in the space of closed sets},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {122--129},
     publisher = {mathdoc},
     volume = {130},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1983_130_a11/}
}