@article{DVMG_2000_1_1_a4,
     author = {A. I. Abakumov},
     title = {Indefinite of date on mathematical ecology},
     journal = {Dalʹnevosto\v{c}nyj matemati\v{c}eskij \v{z}urnal},
     pages = {38--42},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DVMG_2000_1_1_a4/}
}