@article{SM_1983_45_1_a5,
     author = {Yu. S. Kolesov},
     title = {Properties of solutions of a~class of equations with lag which describe the dynamics of change in the population of a~species with the age structure taken into account},
     journal = {Sbornik. Mathematics},
     pages = {91--100},
     publisher = {mathdoc},
     volume = {45},
     number = {1},
     year = {1983},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1983_45_1_a5/}
}