From http://ece.ut.ac.ir/dbrg/Hamshahri/

Copyright

Hamshahri corpus was created in DBRG Lab. at University of Tehran  ECE department.
All rights of the corpus' news are reserved for Hamshahri newspaper. All rights of 
the corpus' data and the tools that are included in this package are reserved for 
University of Tehran - Database Research Group. Usage of this package for any 
research or non-commercial purposes is free with the precondition that you cite the 
related papers below.

Darrudi E., Hejazi M.R., Oroumchian F., Assessment of a Modern Farsi Corpus. In 
Proceedings of the 2nd Workshop on Information Technology & its Disciplines (WITID)
 2004, ITRC, Kish Island, Iran.

Hadi Amiri, Abolfazl AleAhmad, Farhad Oroumchian, Caro Lucas, Masoud Rahgozar, Using
 OWA Fuzzy Operator to Merge Retrieval System Results, The Second Workshop on 
Computational Approaches to Arabic Script-based Languages, LSA 2007 Linguistic 
Institute, Stanford University, USA, 2007.

Abolfazl Aleahmad, Parsia Hakimian, Farzad Mahdikhani and Farhad Oroumchian. N-Gram 
and Local Context Analysis For Persian Text Retrieval. International Sympo-sium on 
Signal Processing and Its Applications, Sharjah U.A.E., 2007.

Farhad Oroumchian, Ehsan Darrudi, Fattane Taghiyareh, Neeyaz Angoshtari. Experiments
 with persian text compression for web. 13th International World Wide Web 
conference, New York, NY, USA, 2004 

Nayyeri, A. Oroumchian, F. FuFaIR: a Fuzzy Farsi Information Retrieval System. IEEE
 International Conference on Computer Systems and Applications, Sharjah U.A.E., 2006.

Abolfazl AleAhmad, Hadi Amiri, Ehsan Darrudi, Masoud Rahgozar, Farhad Oroumchian. 
Hamshahri: A Standard Persian Text Collection.