%1
\bibitem{methods}
K.G.~Chetyrkin, S.G.~Gorishny and F.V.~Tkachov,                 
\plb{119}{1982}{407};
  F.V.~Tkachov, \plb{124}{1983}{212};
  S.G.~Gorishny, S.A.~Larin, and F.V.~Tkachov, \plb{124}{1983}{217};
  K.G.~Chetyrkin, \plb{126}{1983}{371};
  G.B.~Pivovarov and F.V.~Tkachov,
  Rep.~No.~INR P-0370 (Moscow, 1984); 
  K.G.~Chetyrkin and V.A.~Smirnov,
  Rep.~No.~INR P-518 (Moscow, 1987); 
  S.G.~Gorishny and S.A.~Larin,
  \npb{283}{1987}{452};
  K.G. Chetyrkin, \tmph{75}{1988}{346}, \tmph{76}{1988}{809}; 
  V.A.~Smirnov, \mpl{3}{381}{1988};
  S.G.~Gorishny, \npb{319}{1989}{633};
  V.A.~Smirnov, \cmp{134}{1990}{109};
  K.G.~Chetyrkin, Rep.~No.~MPI-PAE/PhT 13/91 (Munich, 1991); 
    F.V.~Tkachov, \ijmpa{8}{1993}{2047}; 
  G.B.~Pivovarov and F.V.~Tkachov,  \ijmpa{8}{1993}{2241}.



%2
%2
\bibitem{reviews} For  reviews of the expansion methods and 
their   applications see:\\
V.A.~Smirnov, \mpl{21}{1485}{1995}; 
V.A.~Smirnov, {\it Renormalization and Asymptotic
Expansion} (Birkh\"auser, Basel, 1991);
K.G.~Chetyrkin, J.H.~K\"uhn and  A.~Kwiatkowski,
\pr{277}{189}{1966};
J.~Fleischer, A.V.~Kotikov and O.L.~Veretin,  
Acta Phys. Polon. {\bf B 29} (1998) 2611.





%3
%3
\bibitem{BenSmi98}
  M. Beneke and V.A. Smirnov, \npb{522}{1998}{321}.


%4
%4
\bibitem{CzaMel98}
  A. Czarnecki and K. Melnikov, \prl{80}{1998}{2531}.

%5
%5
\bibitem{BenSigSmi98}
  M. Beneke, A. Signer, and V.A. Smirnov, \prl{80}{1998}{2535}.

%6
%6
\bibitem{HarSte:review} R. Harlander and M. Steinhauser, {\it Automatic
    Computation of Feynman Diagrams}, Rep.~Nos.~TTP98-41, BUTP-98/28,
  hep-ph/9812357, to be published in {\it Progr.~Part.~Nucl.~Phys.},
  Vol.~43.


%7
%7
\bibitem{CheKatTka79DinSap79CelGon80}
  K.G. Chetyrkin, A.L. Kataev, and F.V. Tkachov, \plb{85}{1979}{277};
  M. Dine and J. Sapirstein, \prl{43}{1979}{668};
  W. Celmaster and R.J. Gonsalves, \prl{44}{1980}{560}.

%8
%8
\bibitem{GorKatLar91}
  S.G. Gorishny, A.L. Kataev, and S.A. Larin, \plb{259}{1991}{144};
  L.R. Surguladze and M.A. Samuel, \prl{66}{1991}{560}; (E) ibid., 2416;
  K.G. Chetyrkin, \plb{391}{1997}{402}.

%9
%9
\bibitem{CheKue90}
  K.G. Chetyrkin and J.H. K\"uhn, \plb{248}{1990}{359}.

%10
%10
\bibitem{CheKue94}
  K.G. Chetyrkin and J.H. K\"uhn, \npb{432}{1994}{337}.
  
%11
%11
\bibitem{rhdiss} 
  R. Harlander, {\it Quarkmasseneffekte in der Quantenchromodynamik und
  asymptotische Entwicklung von Feynman-Integralen}, Shaker Verlag,
  Aachen 1998, ISBN 3-8265-4545-1.

%12
%12
\bibitem{KaeSab55}
G. K\"all\'en and A. Sabry, K. Dan. Vidensk. Selsk. Mat.-Fys. Medd. 
{\bf 29} (1955) No. 17, 
see also 
J. Schwinger, Particles, {\it Sources and Fields}, Vol.II,
   (Addison-Wesley, New York, 1973).

%13
%13
\bibitem{CheKueSte96}
  K.G. Chetyrkin, J.H. K\"uhn, and M. Steinhauser, \plb{371}{1996}{93};
  \npb{482}{1996}{213}; \npb{505}{1997}{40}.

%14
%14
\bibitem{HoaKueTeu95}
  A.H. Hoang, J.H. K\"uhn, and T. Teubner, \npb{452}{1995}{173}.

%15
%15
\bibitem{chkst98} 
  K.G. Chetyrkin, A.H. Hoang, J.H. K\"uhn, M. Steinhauser, and T. Teubner,
  \epjc{2}{1998}{137}.

%16
%16
\bibitem{GorKatLar86}
  S.G. Gorishny, A.L. Kataev, and S.A. Larin, \nca{92}{1986}{119}.

%17
%17
\bibitem{BarGatKoeKun75}
R. Barbieri, R. Gatto, R. K\"ogerler and Z. Kunszt, \plb{57}{1975}{455};
B.H.~Smith and M.B.~Voloshin, \plb{324}{1994}{17}.

%18
%18
\bibitem{Fis77}
W. Fischler, \npb{129}{1977}{157};
A. Billoire, \plb{92}{1980}{343}.

%19
%19
\bibitem{VerFORM}
J.A.M. Vermaseren, {\it Symbolic Manipulation with FORM},
(Computer Algebra Netherlands, Amsterdam, 1991).

%20
%20
\bibitem{CheTka81}
  F.V. Tkachov, \plb{100}{1981}{65};
  K.G. Chetyrkin and F.V. Tkachov, \npb{192}{1981}{159}.

%21
%21
\bibitem{Bro92} 
  D.J. Broadhurst, \zpc{54}{1992}{599}.

%22
%22
\bibitem{FleTar94}
J. Fleischer and O.V. Tarasov, \zpc{64}{1994}{413}.

%23
%23
\bibitem{BroFleTar93}
  D.J. Broadhurst, J. Fleischer, and O.V. Tarasov, \zpc{60}{1993}{287}.
  
%24
%24
\bibitem{BaiBro95}
  P.A. Baikov and D.J. Broadhurst,
  {\it 4th International Workshop on Software Engineering and
  Artificial Intelligence for High Energy and Nuclear Physics (AIHENP95)},
  Pisa, Italy, 3-8 April 1995.
  Published in Pisa AIHENP (1995) 167.
  
%25
%25
\bibitem{CheHarSte98} K.G. Chetyrkin, R. Harlander, and M. Steinhauser,
  \prd{58}{1998}{014012}.

%26
%26
\bibitem{hoang}
  A.H. Hoang, \prd{56}{1997}{7276}.


%27
%27
\bibitem{CheKueSte96:2}
  K.G. Chetyrkin, J.H. K\"uhn, and M. Steinhauser, \npb{505}{1997}{40}.

%28
%28
\bibitem{HarSte97}
  R. Harlander and M. Steinhauser, \prd{56}{1997}{3980}.

%29
%29
\bibitem{geficom}
  K.G. Chetyrkin and M. Steinhauser, unpublished.

%30
%30
\bibitem{qgraf} P. Nogueira, \jcp{105}{1993}{279}.

%31
%31
\bibitem{Sei:dipl} Th. Seidensticker, Diploma thesis (University of
  Karlsruhe, 1998), unpublished.

%32
%32
\bibitem{Stediss}
  M. Steinhauser, {\it Drei-Schleifen-QCD-Korrekturen zu
  Zwei-Punkt-Funktionen}, Shaker Verlag, Aachen, 1996, ISBN 3-8265-1680-X.

%33
%33
\bibitem{mincer2} 
  S.A. Larin, F.V. Tkachov, and J.A.M. Vermaseren,
  Rep.~No.~NIKHEF-H/91-18 (Amsterdam, 1991).
  
%34
%34
\bibitem{CheHarKueSte97}
  K.G. Chetyrkin, R. Harlander, J.H. K\"uhn, and M. Steinhauser,
  \npb{503}{1997}{339}.
                                
%35
%35
\bibitem{HarSte98}
  R. Harlander and M. Steinhauser, \epjc{2}{1998}{151}.

%36
%36
\bibitem{chkprep}
  K.G. Chetyrkin, R. Harlander, and J.H. K\"uhn, in preparation.

%37
%37
\bibitem{CheSpi88}  V.P. Spiridonov and  K.G. Chetyrkin, 
  \sovnp{47}{1988}{522}.

%38
%38
\bibitem{KueSte98}
  J.H. K\"uhn and M. Steinhauser, \plb{437}{1998}{425}.

%39
%39
\bibitem{veltman} M. Veltman, \npb{123}{1977}{89}.
%40
%40
\bibitem{djouadi1} A. Djouadi and C. Verzegnassi,
  \plb{195}{1987}{265};
  A. Djouadi, \nca{100}{1988}{357}.

%41
%41
\bibitem{Kniehl} B.A. Kniehl, \npb{347}{1990}{65};
  B.A. Kniehl, J.H. K\"uhn, and R.G. Stuart, \plb{214}{1988}{621}.

%42
%42
\bibitem{rhoparam} L. Avdeev, J. Fleischer, S. Mikhailov and O. Tarasov,
  \plb{336}{1994}{560}; (E) \ibid{B 349}{1995}{597};
  K.G. Chetyrkin, M. Steinhauser and J.H. K\"uhn, \plb{351}{1995}{331}.

%43
%43
\bibitem{deltar} K.G. Chetyrkin, M. Steinhauser and J.H. K\"uhn,
  \prl{75}{1995}{3394}.

%44
%44
\bibitem{CzarK} A. Czarnecki and J.H. K\"uhn, \prl{77}{1996}{3955};
  (E) \ibid{80}{1998}{893}.

%45
%45
\bibitem{fjrt}
  J. Fleischer, F. Jegerlehner, P. R\c{a}czka and O.V. Tarasov,
  \plb{293}{1992}{437};
  G. Buchalla and A. Buras, \npb{398}{1993}{285};
  G. Degrassi, \npb{407}{1993}{271};
  K.G. Chetyrkin, A. Kwiatkowski and M. Steinhauser, 
  \mpl{8}{1993}{2785}.

%46
%46
\bibitem{KwiSte95}
  A. Kwiatkowski and M. Steinhauser, \plb{344}{1995}{359}.
  

%47
%47
\bibitem{HarSeiSte97} 
  R. Harlander, T. Seidensticker, and M. Steinhauser, \plb{426}{1998}{125}.


%48
%48
\bibitem{AkhBarRie86}
  A. Akhundov, D. Bardin, and T. Riemann, \npb{276}{1986}{1};
  J. Bernabeu, A. Pich, and A. Santamaria, \plb{200}{1988}{569};
  B.W. Lynn and R.G. Stuart, \plb{252}{1990}{676}.

