who created the madonna on a crescent moon in hortus conclusus and also the apse from the carthedral of urgell ?
SELECT DISTINCT var_uri where brack_open dbr_Madonna_on_a_Crescent_Moon_in_Hortus_Conclusus dbp_artist var_uri sep_dot dbr_Apse_from_the_Carthedral_of_Urgell dbp_artist var_uri brack_close