@article{TRSPY_1997_219_a5,
     author = {V. I. Berdyshev},
     title = {Differentiation of {Location} {Error}},
     journal = {Informatics and Automation},
     pages = {74--79},
     publisher = {mathdoc},
     volume = {219},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1997_219_a5/}
}