Unknown macro: \binom and macros with two arguments not working

[MLopez-Ibanez]

This is the amsmath.sty command for the binomial coefficient (combinations). I am not sure how to render it in HTML without MathJax. See https://iridia-ulb.github.io/references/index.html#BriCabEmm2018maximum

I tried using the macro:

\newcommand{\binom}[2]{C_{#1,#2}}

but it seems bibtex2html cannot handle macros with 2 arguments? Only the first one is handled.