TY  - JOUR
AU  - Sobhaninia, Mojtaba
AU  - Abdollahi, Mohsen
AU  - Poorhashemi, Seyed Abbas
TI  - Analysis of Normative Hierarchy in International Environmental Law
JO  - Sustainability, Development & Environment
VL  - 2
IS  - 4
SP  - 77
EP  - 92
PY  - 2021
DO  - 
ER  -