A brief review of recent results on asymptotic expansions of Feynman integrals on the mass shell in momenta and masses and their application to 2-loop calculations is presented.
Comments: 6 pages, LaTeX, aipproc.sty and axodraw.sty (included), 2 figures; talk given at the 5th International Conference "Beyond the Standard Model", Balholm, Norway, April 29 - May 4, 1997
