# Unusual Feynman Integrals at Two-Loops

I'm studying a very particular conformal field theory where unusual Feynman integrals appear when I'm trying to evaluate a two-loop correlator (in position space). These integrals are on the form $\int_0^1du\frac{\text{Log}(b^2 + (a^2 - b^2)u)}{\sqrt{b^2 + (a^2 - b^2)u}} \ , \ \int_0^1du\frac{\text{Log}[u(1 - u)]}{\sqrt{b^2 + (a^2 - b^2)u}}$ and $\int_\mathbb{R^3}\frac{dzdw}{(x - z)^2(y - w)^2(z - w)^{2n}} \ ,$ where I need to solve the last of these for three different cases: $n\in\{1,2,3\} \ .$ Any help on solving these integrals would be appreciated. Alternatively if you know a good reference where similar integrals are studied.