@article{VTAMU_2021_26_134_a7,
     author = {S. Benarab},
     title = {Two-sided estimates for solutions of boundary value problems for implicit differential equations},
     journal = {Vestnik rossijskih universitetov. Matematika},
     pages = {216--220},
     publisher = {mathdoc},
     volume = {26},
     number = {134},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTAMU_2021_26_134_a7/}
}