ySelectorAll('a[role="doc-biblioref"]');
  for (var i=0; i<bibliorefs.length; i++) {
    const ref = bibliorefs[i];
    const cites = ref.parentNode.getAttribute('data-cites').split(' ');
    tippyHover(ref, function() {
      var popup = window.document.createElement('div');
      cites.forEach(function(cite) {
        var citeDiv = window.document.createElement('div');
        citeDiv.classList.add('hanging-indent');
        citeDiv.classList.add('csl-entry');
        var biblioDiv = window.document.getEl