Ėkologicheskai︠a︡ adaptat︠s︡ii︠a︡ periodicheskikh i︠a︡vleniĭ zhizni ptit︠s︡ i mlekopitai︠u︡shchikh v uslovii︠a︡kh ikh sinantropizat︠s︡ii i razvedenii︠a︡ v nevole

Mečys Valius