@ARTICLE{Gholamreza_Saeedi_Estimating_2013,
 author={Gholamreza Saeedi and Korosh Shahriar and Bahram Rezai},
 number={No 3},
 journal={Archives of Mining Sciences},
 howpublished={online},
 year={2013},
 publisher={Committee of Mining PAS},
 title={Estimating Volume of Roof Fall in the Face of Longwall Mining by Using Numerical Methods / Estymacja Objętości Zawału Stropu W Rejonie Przodka Ścianowego W Oparciu O Metody Numeryczne},
 URL={http://journals.pan.pl/Content/93247/PDF/10267-Volume58_Issue3-12_paper.pdf},
 doi={10.2478/amsc-2013-0053},
}