TY  - JOUR
AU  - Karimi Khajehghiasi, Maryam
AU  - Alinezhad, Alireza
TI  - Forecast of climatologically events using improved grey model (Case Study: Qazvin Province Climatology)
JO  - Iranian Journal of Optimization
VL  - 11
IS  - 1
SP  - 49
EP  - 56
PY  - 2019
DO  - 
ER  -