Title: Ob antropogennoĭ ėkologii nitratrespiratornykh, denitrifit͡s︡irui͡u︡shchikh i denitritifit͡s︡irui͡u︡shchikh bakteriĭ
Subjects: Denitrifying Bacteria, Effect of human beings on, Freshwater microbiology, Nature, Denitrifying bacteria
Places: Estonia