Kittler R, -Perez, R, -Darula S.A set of standard skies characterising daylight conditions for computer and energy conscious design. Final Rep. US-SK grant 92 052, 1998; 240-240 pp.
2.
Kittler R, -Ondrejička Š.Exact Determination of the Daylight (Sky Component) from Rectangular Sloping Window Apertures with a “CIE Overcast Sky”, In London: Monograph of the Illum. Eng. Soc., 1963; 6: 6-16.
3.
Kittler R, -Ondrejička Š. Allgemeine Formel für die Ermittlung der Beleuchtungsstärke von zerstreut strahlenden Rechteckflächen. Lichttechnik, 15, 1963; 9: 457-61.