@article{IIGUM_2017_19_a3,
     author = {V. I. Gurman and M. M. Khrustalev},
     title = {Abnormality in the theory of necessary optimality conditions},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {44--61},
     publisher = {mathdoc},
     volume = {19},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2017_19_a3/}
}