@article{ author = {rezaei arefi, mohsen, zangeneh asadi, mohammad ali, behniyafar, aboalfazl, javanbakht, Mohammad}, title = {Identification and classification of karst forms based on the models of Cvijic, Walthem, Komatina, and Herak (case study: Kalat Mountain Basin, Northeast of Iran)}, journal = {Geography}, year = {2020}, volume = {17}, number = {62}, pages = {0-0}, doi = {} }