Sergey Kitaev Toufik Mansour Patrice Séébold Counting Ordered Patterns in Words Generated by Morphisms. 287-298 2008 LATA http://dx.doi.org/10.1007/978-3-540-88282-4_27 conf/lata/2008 db/conf/lata/lata2008.html#KitaevMS08