R

• rezai.Mohammadrezq An analysis of the evolution of the population hierarchy system with an emphasis on the position of the middle cities under study in East Azarbaijan province [ Vol.20, Issue 78 - Summer Year 1402]
• rouhi.fatemeh Estimation of the probability of occurrence of heat waves with different periods of continuation in Ardabil province [ Vol.20, Issue 77 - Spring Year 1402]