@inproceedings{paperid:1008487,
author = {Hasheminia, Seyed Majid},
title = {estimation of the reasons of ganat degredation and its effect on vilagers\' participation  (case study of six regions in the khorassan province)o},
booktitle = {international history seminar on irrigation and drainage},
year = {2007},
location = {تهران, IRAN},
keywords = {Qanat},
}