TY  - JOUR
AU  - J. Reunsumrit
AU  - T. Sitthiwirattham
TI  - A New Class of Four-Point Fractional Sum Boundary Value Problems for Nonlinear Sequential Fractional Difference Equations Involving Shift Operators
JO  - Kragujevac Journal of Mathematics
PY  - 2018
SP  - 371 
VL  - 42
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KJM_2018_42_3_a4/
LA  - en
ID  - KJM_2018_42_3_a4
ER  -