[The cycle of gravimetric oxygen content of the air in the plains and in the mountains].
D000388:Air / Q000032:analysis*; D000531:Altitude; D006294:Health Resorts; D010100:Oxygen / Q000032:analysis*; D012621:Seasons; D014586:USSR
D010100:Oxygen
Rezhim vesovogo soderzhaniia kisloroda v vozdukhe na ravine i v gorakh.