I don't feel safe about Contour Integral for complex analysis. Espacially because of the hypothesis (regularity, Jordan's curve, ...).
I think my complex lesson avoid it !
I would like to study the Contour Integral deeper. Do you know a complex analysis book which is takes time to study curve and contour integral. Or, maybe, a better way is to study some generalisation.
Thanks you for reading me, have a nice day.
EDIT : As I'm talking about Integration, I would like to use Lebesgue please.