Bjørn Johnsen

Multichannel moderate-bandwidth filter instrument for measurement of the ozone-column amount, cloud transmittance, and ultraviolet dose rates.

Arve Kylling, Kåre Edvardsen, Mario Blumthaler, 2003, Applied optics.

State of the Climate in 2014

W. Paul Menzel, Craig S. Long, Chris Derksen, 2015 .