@article{SM_2024_215_6_a4,
     author = {N. I. Pogodaev and M. V. Staritsyn},
     title = {Exact formulae for the increment of the objective functional and necessary optimality conditions, alternative to {Pontryagin's} maximum principle},
     journal = {Sbornik. Mathematics},
     pages = {790--822},
     publisher = {mathdoc},
     volume = {215},
     number = {6},
     year = {2024},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2024_215_6_a4/}
}