<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def strip_footer(ref_lines, section_title):
 """Remove footer title from references lines"""

    pattern = ur'\(?\[?\d{0,4}\]?\)?\.?\s*%s\s*$' % re.escape(section_title)
    re_footer = re.compile(pattern, re.UNICODE)
    return [l for l in ref_lines if not re_footer.match(l)]