lang_menu: true, /* show/hide language menu */
lang_display: [], /* display languages links for given languages, [] for all */
facets: ["sources", "subjects", "authors"], /* display facets, in this order, [] for none */
lang_menu: true, /* show/hide language menu */
lang_display: [], /* display languages links for given languages, [] for all */
facets: ["sources", "subjects", "authors"], /* display facets, in this order, [] for none */