1

THE ECONOMIC-GEOGRAPHIC ASPECT OF THE PROBLEM OF FORMATION OF ETHNIC COMMUNITIES IN AFRICA

Year:
1976
Language:
english
File:
PDF, 594 KB
english, 1976
4

On Physical-Geographic Regionalization and the Regionalization of Natural Resources

Year:
1963
Language:
english
File:
PDF, 793 KB
english, 1963
6

Observation of thermal-acoustic oscillations in hydrogen, nitrogen, oxygen, and argon

Year:
1976
Language:
english
File:
PDF, 316 KB
english, 1976
8

A gas-thermostated hydrogen-helium portable 100 l dewar flask

Year:
1974
Language:
english
File:
PDF, 238 KB
english, 1974
11

Thermostating of cryogenic vessels with stored liquid vapour

Year:
1976
Language:
english
File:
PDF, 492 KB
english, 1976