1. Rad. Heat Transfer;Sparrow,1978
2. Therm. Rad. Heat Transfer;Siegel,2002
3. Accurate determination of diffuse view factors between planar surfaces;Ambirajan;Int. J. Heat Mass Transfer,1993
4. Efficient evaluation of diffuse view factors for radiation;Rao;Int. J. Heat Mass Transfer,1996
5. CEN, prEN 1993-1-2, Eurocode 3: Design of steel structures – Part 1-2: General rules – Structural fire design, Stage 49 draft, Brussels, 2003.