G. S. Littlejohn, “The Development of Practice in Per meation and Compensation Grouting: A Historical Re view (1802-2002),” Proceedings of the 3rd International Conference on Grouting and Ground Treatment, New Orleans, 10-12 February 2003, Geotechnical Special Pub lication No. 120, pp. 50-100. http://dx.doi.org/10.1061/40663(2003)3
 R. Pusch, M. H. Mohammed, J. Kasbohm and S. Knuts son, “Roles of Clay and Concrete in Isolating High-Level Radioactive Waste in Very Long Holes,” International Journal of Research Reviews in Applied Sciences, Vol. 16, No. 2, 2013, in press.
 R. Pusch, L. Warr, G. Grathoff, A. Purbakhtiar, S. Knuts son and M. H. Mohammed, “A Talc-Based Cement-Poor Concrete for Sealing Boreholes in Rock,” Engineering, Vol. 5, No. 3, 2013, pp. 251-267. http://dx.doi.org/10.4236/eng.2013.53036
 R. Pusch, G. Ramqvist, S. Knutsson and M. H. Moham med, “Medium-Deep or Very Deep Disposal of Highly Radioactive Waste?” Journal of Civil Engineering and Architecture, 2013, accepted for publication.
 R. Pusch, G. Ramqvist, S. Knutsson and M. H. Moham med, “The Concept of Highly Radioactive Waste (HLW) Disposal in Very Deep Boreholes in a New Perspec tive,” Journal of Earth Sciences and Geotechnical Engineering, Vol. 2, No. 3, 2012, pp. 1-24.
 A. Fransson, “Grouting Design Based on Characterization of the Fractured Rock Presentation and Demonstration of a Methodology,” SKB Report, Sweco Environment and Chalmers University of Technology, Sweden, 2008.
 A. Pourbakhtiar, “Pilot Study of Method for Constructing Concrete Seals and Fracture Grouts in Deep Boreholes and Cementitious Backfills in Tunnels, Drifts and Shafts in Crystalline Rock,” Master Thesis, Lulea University of Technology, Lulea, 2012.
 M. H. Mohammed, R. Pusch, N. Al-Ansari, S. Knutsson, M. Emborg, M. Nilsson and A. Pourbakhtiar, “Talc Based Concrete for Sealing Borehole Optimized by using Particle Packing Theory,” Journal of Civil Engineering and Architecture, Vol. 7, No. 4, 2013, pp. 440-455.
 M. H. Mohammed, M. Emborg, R. Pusch and S. Knuts son, “Packing Theory for Natural and Crushed Aggregate to Obtain the Best Mix of Aggregate: Research and De velopment,” Proceedings of WASET, International Con ference on Civil and Construction Engineering, Vol. 67, No. 150, pp. 819-825.
 M. H. Mohammed, R. Pusch, N. Al-Ansari and S. Knuts son, “Optimization of Concrete by Minimizing Void Vol ume in Aggregate Mixture System,” Journal of Advanced Science and Engineering Research, Vol. 2, No. 3, 2012, pp. 208-222.