def set_select(cls, authors):
        """
        Put data into ``<select>`` element.

        Args:
            authors (dict): Dictionary with author informations returned from
                aleph REST API. Format:
                ``{"name": .., "code": .., "linked_forms": ["..",]}``.
        """
        cls.select_el.html = ""

        if not authors:
            cls.select_el.disabled = True
            cls.select_el <= html.OPTION("Nic nenalezeno!")
            return

        cls.select_el.disabled = False
        for author_dict in authors:
            name = author_dict.get("name")
            code = author_dict.get("code")
            alt_name = author_dict.get("alt_name", name)

            if not (name and code):
                continue

            cls.code_to_data[code] = author_dict
            cls.select_el <= html.OPTION(alt_name, value=code)