ABSTRACT
In Section 16.3.3, Equation 16.78 gives the following standard integral [1]: ∬ Δ e ς 1 l ς 2 m ς 3 n d x d y = l ! m ! n ! l + m + n + 2 ! 2 A e . https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315115931/4707fdd3-f34e-4bb8-b9c6-7500461af290/content/eqn16_78a.jpg"/>
