Webpack CSS filename in JS file

I am writing a React app with create-react-app which uses Webpack and the extract-text-plugin to generate bundled js and css files. Now I would like to know the filename of the generated CSS file in my JS file, like so:

import React, { Component } from 'react';
import './App.css';

class App extends Component {
  render() {
    return (
      <div className="App">
        {fileNameOfMyGeneratedCssFileHere}
      </div>
    );
  }
}

export default App;

Is that even possible, maybe with a custom loader or Webpack plugin?

edit To clarify: create-react-app is not the problem here, I can eject it or create a custom configuration. My problem is how to know the CSS file name(s) from inside a JS script.