lang_options: [], /* display languages links for given languages, [] for all */
facets: ["xtargets", "subject", "author"], /* display facets, in this order, [] for none */
responsive_design_width: undefined, /* a page with less pixel width considered as narrow */
lang_options: [], /* display languages links for given languages, [] for all */
facets: ["xtargets", "subject", "author"], /* display facets, in this order, [] for none */
responsive_design_width: undefined, /* a page with less pixel width considered as narrow */