def get_suspecious_items(_items):
    """Items with libraryCatalog==Zotero

    These items are suspecious, cause they were imported from
    pdf files and maybe Zotero did not import the metadata properly.

    :param _items: Zotero library items
    :type _items: list containing dicts
    :returns: list containing dicts

    """

    list_catalog_zotero = []
    for item in _items:
        if "libraryCatalog" in item["data"]:
            catalog = item["data"]["libraryCatalog"]
            if catalog == "Zotero":
                list_catalog_zotero.append(item)

    return list_catalog_zotero