Modeling of the radial heat flow and cooling processes in a deep ultraviolet Cu + Ne-CuBr laser. Iliev, Iliycho Petkov, Gocheva-Ilieva, Snezhana Georgieva, Temelkov, Krassimir Angelov, Vuchkov, Nikolay Kirilov, Sabotinov, Nikola Vassilev (2009) Mathematical Problems in Engineering