@article{AA_2022_34_5_a5, author = {M. I. Novikov}, title = {Sufficient conditions for the minimality of concave functions}, journal = {Algebra i analiz}, pages = {173--210}, year = {2022}, volume = {34}, number = {5}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AA_2022_34_5_a5/} }