Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{TRSPY_1967_91_a0, title = {Preface}, journal = {Informatics and Automation}, pages = {3--4}, publisher = {mathdoc}, volume = {91}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1967_91_a0/} }
Preface. Informatics and Automation, Boundary problems for differential equations, Tome 91 (1967), pp. 3-4. http://geodesic.mathdoc.fr/item/TRSPY_1967_91_a0/