def get_citation_links(session, profile_url):
    """
    From the given url to Google scholar page, extract all absolute links to
    paper citations.

    Args:
       session (HTMLSession)
       profile_url (str): a url to a person's Google Scholar page.

    Returns:
        list: list of absolute URLs to paper cites.

    """
    r = session.get(profile_url)
    links = r.html.absolute_links
    assert len(links) > 0, "No paper cites, did we hit a captcha?"
    paper_links = [link for link in links if "view_citation" in link]
    return paper_links