TY - JOUR ID - 61171 TI - First Pages JO - Physical Geography Research JA - JPHGR LA - en SN - 2008-630X Y1 - 2016 PY - 2016 VL - 48 IS - 4 SP - 1 EP - 5 DO - N2 - UR - https://jphgr.ut.ac.ir/article_61171.html L1 - https://jphgr.ut.ac.ir/article_61171_a093216e76d2bb8af9f18a9b8617906d.pdf ER -