Error: mysqli_query()
SELECT pure_clave, pure_titulo, pure_revista, pure_autor1,pure_autor2, pure_autor3, pure_autor4, pure_autor5, pure_autor6, pure_autor7, pure_anho, pure_link, pure_nombre_fich, pure_volumen, pure_numero, pure_pag_inicial, pure_pag_final, pure_editorial, pure_mes, pure_pos, pure_total, pure_fac_imp FROM publicacion_revista WHERE ((pure_autor1 = 'Xavier Ferré' AND pure_autor1_flag = 'S') OR (pure_autor2 = 'Xavier Ferré' AND pure_autor2_flag = 'S') OR (pure_autor3 = 'Xavier Ferré' AND pure_autor3_flag = 'S') OR (pure_autor4 = 'Xavier Ferré' AND pure_autor4_flag = 'S') OR (pure_autor5 = 'Xavier Ferré' AND pure_autor5_flag = 'S') OR (pure_autor6 = 'Xavier Ferré' AND pure_autor6_flag = 'S') OR (pure_autor7 = 'Xavier Ferré' AND pure_autor7_flag = 'S')) AND PURE_JCR='yes' ORDER BY pure_anho DESC