TY  - GEN
AU  - Ikram,Muhammad
AU  - Mahmoudi,Amin
AU  - Shah,Syed Zulfiqar Ali
AU  - Mohsin,Muhammad
TI  - Forecasting number of ISO 14001 certifications of selected countries: application of even GM (1,1), DGM, and NDGM models
SN  - 1614-7499
PY  - 2019///0612
KW  - Certification
KW  - China
KW  - Commerce
KW  - Conservation of Natural Resources
KW  - methods
KW  - Forecasting
KW  - Germany
KW  - Humans
KW  - India
KW  - Italy
KW  - Japan
KW  - Models, Theoretical
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1007/s11356-019-04534-2
ER  -