@article{ISU_2008_8_4_a0,
     author = {T. M. Aldybekov},
     title = {Generalized regular systems of differential equations},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {3--7},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2008_8_4_a0/}
}