@article{MM_2002_14_12_a1,
     author = {D. O. Logofet},
     title = {Three sources and three constituents of the formalism for a population with discrete age and stage structures},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {11--22},
     publisher = {mathdoc},
     volume = {14},
     number = {12},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2002_14_12_a1/}
}