1. Mojtaba Shafiei , Bijan Ghahraman , B. Saghafian , Hossein Ansari , B. Naghavi , Stochastic forecasting of agricultural drought based on Palmer Drought Severity Index (PDSI) , American Geophysical Union’s 45th annual Fall Meeting , 2012-12-03
  2. Seyyed Morteza Sadeghi , Bijan Ghahraman , Ali Naghi Ziaei , Kamran Davary , Klaus Reichardt , Scott B. Jones , Scaled Solutions of Richards\' Equation for Infiltration and Drainage Considering Dissimilar Soils , the AGU fall Meeting , 2011-12-04
  3. Mojtaba Shafiei , Hossein Ansari , Bijan Ghahraman , Mohammad Bagher Sharifi , مدل سازی سری زمانی شدت خشکسالی براساس شاخص پالمر , اولین کنفرانس ملی خشکسالی و تغییر اقلیم , 2011-05-18
  4. Mahyar Naseri Moghaddam , Kamran Davary , Bijan Ghahraman , Seyed Majid Hasheminia , Alireza Faridhosseini , Sadegh Ghazanfari , Hydrological investigation of Shahid-Yaqoobi dam: A successful design? , EGU General Assembly , 2011-04-03
  5. Tala Yazdan Panah , Kamran Davary , Saeed Reza Khodashenas , Bijan Ghahraman , Effect of irrigation efficiency on Groundwater storages (by WEAP model) , ICWR 2009 , 2009-05-26
  6. Seyed Hossein Sanaei Nejad , Bijan Ghahraman , راستگو سعید , Spatial Modelling of Soil Erosion Using GIS(A case study in Kermanshah, Iran) , AgroEnvironment 2006 , 2006-09-04