@article{TIMM_2021_27_4_a6,
     author = {L. D. Popov},
     title = {On one method of increasing the smoothness of external penalty functions in linear and convex programming},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {88--101},
     publisher = {mathdoc},
     volume = {27},
     number = {4},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2021_27_4_a6/}
}