1. Solar and terrestrial radiation;Ångström;Q.J.R. Met. Soc.,1924
2. Contribution to the study of atmospheric turbidity in Athens;Catsoulis;Memoirs of the National Observatory of Athens, Ser. II, Meteorology,1973
3. Atmospheric turbidity at Athens Observatory;Catsoulis;Pure appl. Geophys.,1977
4. The empirical relation between solar radiation and sunshine duration;Catsoulis;Memoirs of the National Observatory of Athens. Ser. II, Meteorology,1975