@article{TRSPY_1970_110_a0, author = {O. A. Ladyzhenskaya}, title = {Preface}, journal = {Informatics and Automation}, pages = {3--4}, publisher = {mathdoc}, volume = {110}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1970_110_a0/} }