@article{MM_1994_6_5_a4,
     author = {A. P. Levich and V. L. Alekseev and V. A. Nikulin},
     title = {Mathematical aspects of variation modelling in ecology of communities},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {55--76},
     publisher = {mathdoc},
     volume = {6},
     number = {5},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1994_6_5_a4/}
}