Alavi, M., 1994. Tectonics of Zagros orogenic belt of Iran: new data and interpretation. Tectonophys. 229: 211–238.
Al-Harthi, A.A., Al-Amri, R.M., Shehata, W.M., 1999. The porosity and engineering properties of vesicular basalt in Saudi Arabia. Engineering Geology. 54: 313–320.
Altindag, R., 2002. The evaluation of rock brittleness concept on rotary blast hole drills. Journal of The South African Institute of Mining and Metallurgy. 102 (1): 61- 66.
Altindag, R., 2003. Correlation of specific energy with rock brittleness concepts on rock cutting. Journal of The South African Institute of Mining and Metallurgy. 103: 163-173.
Altindag, R., 2010. Reply to the discussion by Yagiz on ‘‘Assessment of some brittleness indexes in rock-drilling efficiency’’ by Altindag. Rock Mechanics and Rock Engineering, 43: 375–376.
Altindag, R., Guney, A., 2010. Predicting the relationships between brittleness and mechanical properties (UCS, TS and SH) of rocks. Scientific Research and Essays. 5 (16): 2107–2118.
Amiri, M., 2005 The effect of bedrock dissolution and pumping on Hamadan sinkholes occurrences. Proceeding of the conference on hazards of sinkholes in karst terrains, Kermanshah, Iran (in Persian), pp. 43–67.
Aqil, M., Kit, I., Yano, A., Nishiyama, S., 2007. A comparative study of ANNand neuro-fuzzy in continuous modeling of the daily and hourly behavior of runoff. Journal of Hydrology. 337: 22–34.
ASTM, 2004. Standard test method for evaluation of durability of rock erosion control under freezing and thawing conditions, D, 5312-92.
Bayram, F., 2012. Predicting mechanical strength loss of natural stones after freeze–thaw in cold regions. Cold Regions Science and Technology. 83- 84, 98–102.
Berberian, M., Alavi-Tehrani, N., 1977. Structural analyses of Hamadan metamorphic tectonites: A Paleotectonic Discussion. Geological Survey of Iran, Report no. 40: 263–279.
Blindheim, O.T., Bruland, A., 1998. Boreability testing. Norwegian TBM tunnelling 30 years of Experience with TBMs in Norwegian Tunnelling, Norwegian Soil and Rock Engineering Association. 11: 29–34.
Chen, C.H., Yeung, M.R., Mori, N., 2004. Effect of water saturation on deterioration of welded tuff due to freeze–thaw action. Cold Regions Science and Technology. 38: 127–136.
Bolourchi, M.H., 1979. Explanatory text of Kabudar Ahang Quadrangle Map, scale 1:250,000. Geological and Mineral Survey of Iran.
George, E. A., 1995. Brittle failure of rock material – Test results and constitutive models. A.A. Balkema/Rotterdam/Brolkfield. pp. 123-128.
Gharahbagh, A.E., Fakhimi, A., Socorro, N.M., 2011. The effect of pore size on tensile and compressive strengths of rock: a bonded particle simulation. 45th US rock mechanics geomechanic Symposium, San Francisco, CA.
Goktan, R.M., Yilmaz, N.G., 2005. A new methodology for the analysis of the relationship between rock brittleness index and drag pick cutting efficiency. Journal of The South African Institute of Mining and Metallurgy. 105: 727-733.
Gong, Q.M., Zhao, J., 2007. Influence of rock brittleness on TBM penetration rate in Singapore granite. Tunnelling and Underground Space Technology. 22: 317- 324.
Heidari, M., Khanlari, G.R., Torabi-Kaveh, M., Kargarian, S., Saneie, S., 2013. Effect of Porosity on Rock Brittleness. Rock mechanics and rock engineering. 47:785-790.
Hori, M., Morihiro, H., 1998. Micromechanical analysis on deterioration due to freezing and thawing in porous brittle materials. International Journal of Engineering Science. 4: 511- 522.
Hornik, K., Stinchcombe, M., White, H., 1989. Multilayer feedforward networks are universal approximators. Neural Networks. 2: 359- 366.
Hucka, V., Das, B., 1974. Brittleness determination of rocks by different methods. International Journal of Rock Mechanics and Mining Sciences 11: 389- 392.
ISRM., 1978. Suggested methods for determining tensile strength of rock materials. International Journal of Rock Mechanics and Mining Sciences. 15: 99- 103.
ISRM., 1979. Suggested methods for determining the uniaxial compressive strength and deformability of rock materials. International Journal of Rock Mechanics and Mining Sciences. 18: 85- 110.
ISRM., 1981. ISRM Suggested Methods: Rock Characterization, Testing and Monitoring: International Society of Rock Mechanics Suggest Methods. Pergamon Press, London.
ISRM., 1985. Suggested method for determining point load strength. International Journal of Rock Mechanics and Mining Sciences. 2: 51- 60.
Kahraman, S., 2002. Correlation of TBM and drilling machine performances with rock brittleness. Engineering Geology. 4: 269- 283.
Kaiser, P.K., Diederichs, M.S., Martin, C.D., Sharp, J., Steiner, W., 2000. Underground works in hard rock tunneling and mining. Keynote lecture at GeoEngineering 2000. Melbourne, Australia: Technomic Publishing Co. 1: 841–926.
Karimi, H., Taheri, K., 2010. Hazard and mechanism of sinkholes on Kabudar Ahang and Famenin plains of Hamadan, Iran. Natural Hazards. 55: 481- 499.
Khanlari, G.R., Heidari, M., Momeni, A.A., Ahmadi, M., Taleb Beydokhti, A., 2012. The effect of groundwater overexploitation on land subsidence and sinkhole occurrences, western Iran. Quarterly JournalofEngineering GeologyandHydrogeology. 45: 447- 456.
Lawrence, J., 1991. Introduction to neural networks, 3rd edn. California Scientific Software, Grass Valley.
Lu, M., AbouRizk, S.M., Hermann, U.H., 2001. Sensitivity analysis of neural networks in spool fabrication productivity studies. Journal of Computing in Civil Engineering. 15: 299–308.
Malinova, T., Guo, Z.X., 2004. Artificial neural network modeling of hydrogen storage. properties of Mg-based Alloys. Materials Science and Engineering A. 365: 219- 227.
Martinez-Martinez, J., Benavente, D., Gomez-Heras, M., Marco-Castao, L., Garcia-del-Cura, M.A., 2013. Non-linear decay of building stones during freeze–thaw weathering processes. Construction and Building Materials. 38: 443- 454.
Matlab 7.1., 2005. Software for technical computing and model-based design. The Math Works Inc.
Moh’d, B.K., 2009. Compressive strength of vuggy oolitic limestones as a function of their porosity and sound propagation. Jordan Journal of Earth and Environmental Sciences. 1: 18- 25.
Nourani, V., Sayyah Fard, M., 2012. Sensitivity analysis of the artificial neural network outputs in simulation of the evaporation process at different climatologic regimes. Advances in Engineering Software
Protodyakonov, M.M., 1963. Mechanical properties and drillability of rocks. In Proc. 5th symp. Rock mech, University of Minnesota USA.
Rajabzadeh, M.A., Moosavinasab, Z., Rakhshandehroo, G., 2012. Effects of rock classes and porosity on the relation between uniaxial compressive strength and some rock properties for carbonate rocks. Rock Mechanics and Rock Engineering
. 1: 113- 122.
Sabziparvar, A.A., 2003. The analysis of aridity and meteorological drought indices in west of Iran. Research report. Bu-Ali Sina University, Hamadan, Iran.
Sepahi, A.A., 1999. Petrology of Alvand plutonic complex with special reference on granitoids. Thesis (PhD). In Persian; Tarbiat Moallem University of Tehran, Iran.
Suorineni, F.T., Chinnasane, D.R., Kaiser, P.K., 2009. A procedure for determining rock-type specific Hoek–Brown brittle parameters. Rock Mechanics and Rock Engineering
. 42: 849–881.
Tan, X., Chen, W., Tian, H., Cao, J., 2011. Laboratory investigations on the mechanical properties degradation of granite under freeze–thaw cycles. Cold Regions Science and Technology. 68:130–138.
Torabi-Kaveh, M., Naseri, F., Saneie, S., Sarshari, B., 2014. Application of artificial neural networks and multivariate statistics to predict UCS and E using physical properties of Asmari limestones. Arabian journal of Geosciences. 8: 2889-2897.
Vihtuk, A.A., 1998. Determination of strength of solid porous body. Acta Physica Polonica A. 93 (Suppl), S71.
Yagiz, S., 2004. Correlation between uniaxial compressive strength and brittleness of selected rock types. In: 57th Geological Congress of Turkey, MTA General Directory, Ankara, Turkey, Abstract, p. 160.
Yagiz, S., 2006. An investigation on the relationship between rock strength and brittleness. In: 59th Geological Congress of Turkey, MTA General Directory, Ankara, Turkey, Abstract, p. 352.
Yagiz, S., 2009. Assessment of brittleness using rock strength and density with punch penetration test. Tunnelling and Underground Space Technology. 24: 66-74.
Yagiz, S., Gokceoglu, C., 2010. Application of fuzzy inference system and nonlinear regression models for predicting rock brittleness. Expert Systems With Applications. 37: 2265- 2272.
Yarali, O., Kahraman, S., 2011. The drillability assessment of rocks using the different brittleness values. Tunnelling and Underground Space Technology. 26: 406- 414.
Yarali O, Soyer E (2011) The effect of mechanical rock properties and brittleness on drillability. Science Research Essays 6(5): 1077-1088.
Zamiran Consulting Engineers., 2003. Sinkhole and subsidence studies in Kabudar Ahang and Famenin plain. Report, West Water Authority Iran.
Zurada, J.M., 1992. Introduction to Artificial Neural Systems. St. Paul.: West Publishing.