BibBase: Error retrieving bibtex file.
Request was:
http://https%3A%2F%2Fbibbase.org%2Fshow%3Fbib%3Dhttps%3A%2F%2Fwww.dropbox.com%2Fs%2F1yaa9wha4jhlrgu%2Fpubs.bib%3Fdl%3D1
{
  'User-Agent': 'bibbase',
  Connection: 'keep-alive',
  'Keep-Alive': 'timeout=300, max=1000'
}