1. Features of trophospheric and stratospheric dust;Elterman;Appl. Opt.,1968
2. Measurements of the sulphate and ammonium compositions of the arctic aerosol of the Greenland and Ice Cap;Fenn;J. Atmos. Sci.,1963
3. Some atmospheric turbidity measurements in antarctica;Fischer;J. Appl. Met.,1967
4. Fletcher, J. O. 1965. The heat budget of the arctic Basin and its relation to climate. United States Air Force Project RAND report, R-444-PR.