def set_references(article, references):
    if article.id:
        Reference.query.filter_by(from_article=article).delete()

    known_to_article_ids = set()

    for ref in references:
        fingerprint = get_reference_meta_fingerprint(ref)
        if fingerprint:
            ref['to_origin_ids'][Origins.fingerprint.name] = fingerprint

        try:
            to_article = get_article(ref['to_origin_ids'])
            if to_article:
                if to_article.id in known_to_article_ids:
                    references_duplicates_logger.warn(
                        'article has duplicate references',
                        article_id=article.id,
                        ref_to_origin_ids=ref['to_origin_ids'])
                    continue

                known_to_article_ids.add(to_article.id)
        except MultipleResultsFound as e:
            # We have the following problem with origin_ids:
            # Multiple article can have same origin_id
            #
            # If we find such articles, we will assign the reference to the first
            # of them and write warning to log
            to_article = (
                Article.query.filter(column_contains_origins(
                    Article.origin_ids, ref['to_origin_ids'])).first())
            origin_ids_duplicates_logger.warn(
                'origin_ids references multiple articles',
                origin_ids=ref['to_origin_ids'])

        Reference(
            from_article=article,
            to_article=to_article,
            raw_ref=ref['raw_ref'],
            format_type=ref['format_type'],
            origin=ref['origin'],
            order=ref['order'],
            from_origin_ids=ref['from_origin_ids'],
            to_origin_ids=ref['to_origin_ids'],
        )