@article{TRSPY_1967_89_a5,
     author = {M. A. Galakhov},
     title = {On summable regions},
     journal = {Informatics and Automation},
     pages = {69},
     publisher = {mathdoc},
     volume = {89},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1967_89_a5/}
}