Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MMO_1967_16_a0, author = {M. S. Agranovi\v{c}}, title = {Positive boundary value problems for certain first order systems}, journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva}, pages = {3--24}, publisher = {mathdoc}, volume = {16}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MMO_1967_16_a0/} }
M. S. Agranovič. Positive boundary value problems for certain first order systems. Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 16 (1967), pp. 3-24. http://geodesic.mathdoc.fr/item/MMO_1967_16_a0/