@article{IIGUM_2014_8_a3,
     author = {O. O. Vasilieva},
     title = {Optimal control methods for conservation biology: a case of non-harvesting utility},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {44--61},
     year = {2014},
     volume = {8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2014_8_a3/}
}