Bundling additional Javascript/CSS/Fonts in Ionic2 App

I am moving an app from Ionic 1 to Ionic 2 and am struggling to figure out how I can incorporate a third party library with JS/CSS/Fonts.

The library is MathJax and it exists in the npm repo, so I can include it in the project. It has fonts and additional CSS that also needs including, all the examples I have seen on the Internet for inclusion just mention JS libraries where the JS file is then just imported into a typescript file.

In my ionic 1 app I customised my gulpfile to copy these additional resources into an appropriate folder in the built app.