@article{ARM_1980_16_1_a2,
author = {Kiguradze, Ivan T. and Rach\r{u}nkov\'a, Irena},
title = {On a certain nonlinear problem for two-dimensional differential systems},
journal = {Archivum mathematicum},
pages = {15--37},
year = {1980},
volume = {16},
number = {1},
mrnumber = {594664},
zbl = {0465.34004},
language = {en},
url = {http://geodesic.mathdoc.fr/item/ARM_1980_16_1_a2/}
}
Kiguradze, Ivan T.; Rachůnková, Irena. On a certain nonlinear problem for two-dimensional differential systems. Archivum mathematicum, Tome 16 (1980) no. 1, pp. 15-37. http://geodesic.mathdoc.fr/item/ARM_1980_16_1_a2/
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