Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{MR_1977__6_a3,
author = {I. G. Petrofskiy},
title = {\ensuremath{\Sigma}\ensuremath{\upsilon}\ensuremath{\nu}\ensuremath{\eta}\ensuremath{\theta}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\mu}\ensuremath{\acute\epsilon}\ensuremath{\nu}\ensuremath{\varepsilon}\ensuremath{\varsigma} {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\varphi}o\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\epsilon}\ensuremath{\varsigma}} {E\ensuremath{\xi}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\acute\omega}\ensuremath{\sigma}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma}}},
journal = {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\omega}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta}
},
pages = {77-139},
publisher = {mathdoc},
volume = {6},
year = {1977},
language = {gr},
url = {http://geodesic.mathdoc.fr/item/MR_1977__6_a3/}
}
I. G. Petrofskiy. Συνηθισμένες Διαφορικές Εξισώσεις. Μαθηματική Επιθεώρηση , Tome 6 (1977), p. 77-139. http://geodesic.mathdoc.fr/item/MR_1977__6_a3/