1. Solar and terrestrial radiation;Angstrom;Q. J. R. Met. Soc.,1924
2. On computation of global radiation from the records of sunshine;Angstrom;Arkiv Geophysik,1956
3. The inter-relationship and characteristic distribution of direct, diffuse and total radiation;Liu;Sol. Energy,1960
4. Radioactive Heat Transfer for Spacecraft and Solar Power Plant Design;Kreith,1962
5. Solar radiation graphs;Whillier;Sol. Energy,1965