def create_identifiers_lists(identifiers):
    """Splits identifiers in two lists."""
    issn_list = []
    isbn_list = []

    for ident in identifiers:
        if ident["scheme"] == "ISSN":
            issn_list.append(ident["value"])

        if ident["scheme"] == "ISBN":
            isbn_list.append(ident["value"])

    return issn_list, isbn_list