@article{paperid:1023155,
author = {Eyshi Rezaei, Ehsan and Azade Mohammadian and Mansoore Koohi and Bannayan Aval, Mohammad},
title = {Comparative Analysis of Drought Indices for Drought Zone Scheme of Northern Khorasan Province of Iran},
journal = {Notulae Scientia Biologicae},
year = {2011},
volume = {3},
number = {3},
month = {August},
issn = {2067-3205},
pages = {62--69},
			numpages = {7},
keywords = {drought; geostatistic; indices; Khorasan; rainfall},
}