TY - JOUR AU - Sreelatha Chandragiri TI - Difference equations and generating functions for some lattice path problems JO - Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika PY - 2019 SP - 551 EP - 559 VL - 12 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JSFU_2019_12_5_a2/ LA - en ID - JSFU_2019_12_5_a2 ER -