@article{IVM_2002_2_a2,
     author = {U. Badam},
     title = {Necessary optimality conditions in survival problems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {18--22},
     publisher = {mathdoc},
     number = {2},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2002_2_a2/}
}