• p. 43, (3.36)

    the upper limit should be \infty, not 1

  • p. 44, (3.41)

    insert the factor \alpha_5 into the term (\alpha_1+\alpha_3)(\alpha_2+\alpha_4)

  • p. 73, (4.43)

    there should be \pi^4 rather than \pi^2

  • p. 91, 2nd line after (4.76)

    [8] -> [D.J. Broadhurst, J. Fleischer and O.V. Tarasov, Z. Phys. C60 (1993) 287]

  • p. 93, (4.80)

    insert the factor \Gamma(-z_2-z_3-z_4) and put \Gamma(4-a_{467}-2\epsilon +z_5+z_6+z_7) in the denominator

  • p. 97, first paragraph, 7th line

    the numerator (l_1 l_3)^{-a_{11}}... -> the numerator [(l_1+ l_3)^2]^{-a_{11}}, where $l_{1,3}$ are the momenta flowing through lines $1$ and $3$ in the same direction.

  • p. 99, eq. (4.92)

    replace \Gamma(a_{1,2}+z_1) by \Gamma(a_{12}+z_1)

  • p. 115, eq. (5.27)

    insert (\I\pi^{d/2})^2 in the 2nd line and make the replacement \frac{(\I\pi^2)^2}{q^2} -> -\frac{(\I\pi^{d/2} \E^{-\gm_{\rm E} \ep})^2}{(-q^2)^{1+2\ep}} in the 3rd line

  • p. 122, eq. (5.46)

    (d-a_{3466}) -> (d-a_{3466}-2)

    eq. (5.47)

    (d-a_{1266}) -> (d-a_{1266}-2)

  • p. 179, eq. (A.3) and p. 180, eq. (A.6)

    the factor 2^n is missing on the right-hand side

  • p. 185, eqs. (A.41a) and (A.41b)

    the factor 1/N! on the rhs should be omitted