TY  - JOUR
AU  - V. G. Il'ichev
TI  - Delta functions and the investigation of Volterra ecological models in a~changing environment
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1998
SP  - 23
EP  - 33
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1998_4_a3/
LA  - ru
ID  - IVM_1998_4_a3
ER  -