Fix for references having FirstParagraph as style

    new_style = "EX"

    counter = 0

    # Loop over all paragraphs with style "BodyText" and change to "EX"

    for para in root.xpath('.//w:p[w:pPr/w:pStyle[@w:val="BodyText"]]', namespaces=ns):

    # Loop over all paragraphs with style "BodyText" or "FirstParagraph" and change to "EX"

    for para in root.xpath('.//w:p[w:pPr/w:pStyle[@w:val="BodyText" or @w:val="FirstParagraph"]]', namespaces=ns):

        old_val = para.get(f"{{{ns['w']}}}val")

        # A reference is a paragraph that contains:

        # - A pPr with pStyle "BodyText" (already checked in loop)

        # - A pPr with pStyle "BodyText" or "FirstParagraph" (already checked in loop)

        # - A bookmarkStart and a bookmarkEnd

        # - A run with text matching either \[\d+\] or \[i\.\d+\]

        # - An hyperlink element