Results from the paper S. Bekavac, A. G. Grozin, D. Seidel, V. A. Smirnov Three-loop on-shell Feynman integrals with two masses TTP09-08 (see also: http://www-ttp.physik.uni-karlsruhe.de/cgi-bin/webmaster/abs2html?ttp09-08)