TY - JOUR AU - Bohdana Hladysh AU - Alexandr Prishlyak TI - Simple Morse functions on an oriented surface with boundary JO - Žurnal matematičeskoj fiziki, analiza, geometrii PY - 2019 SP - 354 EP - 368 VL - 15 IS - 3 UR - http://geodesic.mathdoc.fr/item/JMAG_2019_15_3_a3/ LA - en ID - JMAG_2019_15_3_a3 ER -