# This is a theory section¶

I might want to describe some equations:

$\int_0^\infty e^{-x^2} dx=\frac{\sqrt{\pi}}{2}$

And refer to a paper [author2015].

 [author2015] first a., second a., cheese b. (2015). The title of their paper. Journal of papers, 15: 1023-1049.