Study of psychological glare in interiors /
Haubner, P.
Johanni, H.
Ross, P. A.
Garston :  Building Research Station, 
1970.
Originally published as Untersuchung über die psychologische Blendung in Innenräumen, in Lichttechnik, 1970, 22 (6), 304-6; (7) 345-7.