Added references for state-of-the-art section

refs.bib

@@ -145,3 +145,173 @@
  publisher  = ieee_cs,
  address    = ieee_cs_ca_adr,
 }
+
+
+@online{pco,
+ author     = {PCO},
+ title      = {CCD and CMOS camera systems},
+ url        = {http://www.pco.de},
+ year       = {2014}
+}
+
+
+@ARTICLE{garcia2008, 
+author={Garcia-Moreno, F. and Rack, A. and Helfen, L. and Baumbach, T. and Zabler, S. and Babcsan, N. and Banhart, J. and Martin, T. and Ponchut, C. and Di Michiel, M.}, 
+journal={Applied Physics Letters}, 
+title={Fast processes in liquid metal foams investigated by high-speed synchrotron x-ray microradioscopy}, 
+year={2008}, 
+month={Mar}, 
+volume={92}, 
+number={13}, 
+pages={134104-134104-3}, 
+keywords={fracture;high-speed optical techniques;liquid films;liquid metals;metal foams;metallic thin films;viscosity;6125Mv;6210+s;6620-d;6815+e;7847-p;8270Rr}, 
+doi={10.1063/1.2905748}, 
+ISSN={0003-6951},}
+
+
+@article{rack2009,
+  title={The micro-imaging station of the TopoTomo beamline at the ANKA synchrotron light source},
+  author={Rack, A and Weitkamp, T and Bauer Trabelsi, S and Modregger, P and Cecilia, A and dos Santos Rolo, T and Rack, T and Haas, D and Simon, R and Heldele, R and others},
+  journal={Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
+  volume={267},
+  number={11},
+  pages={1978--1988},
+  year={2009},
+  publisher={Elsevier}
+}
+
+
+@article{wang2001,
+  title={A high-throughput x-ray microtomography system at the Advanced Photon Source},
+  author={Wang, Yuxin and De Carlo, Francesco and Mancini, Derrick C and McNulty, Ian and Tieman, Brian and Bresnahan, John and Foster, Ian and Insley, Joseph and Lane, Peter and von Laszewski, Gregor and others},
+  journal={Review of Scientific Instruments},
+  volume={72},
+  number={4},
+  pages={2062--2068},
+  year={2001},
+  publisher={AIP Publishing}
+}
+
+@article{uesugi2006,
+  title={Fast tomography using quasi-monochromatic undulator radiation},
+  author={Uesugi, Kentaro and Sera, Toshihiro and Yagi, Naoto},
+  journal={Journal of synchrotron radiation},
+  volume={13},
+  number={5},
+  pages={403--407},
+  year={2006},
+  publisher={International Union of Crystallography}
+}
+
+@article{michiel2005,
+  title={Fast microtomography using high energy synchrotron radiation},
+  author={Di Michiel, Marco and Merino, Jose Manuel and Fernandez-Carreiras, David and Buslaps, Thomas and Honkim{\"a}ki, Veijo and Falus, Peter and Martins, Thierry and Svensson, Olof},
+  journal={Review of Scientific Instruments},
+  volume={76},
+  number={4},
+  pages={043702},
+  year={2005},
+  publisher={AIP Publishing}
+}
+
+@article{momose2009,
+  title={High-speed X-ray phase imaging and X-ray phase tomography with Talbot interferometer and white synchrotron radiation},
+  author={Momose, Atsushi and Yashiro, Wataru and Maikusa, Hirohide and Takeda, Yoshihiro},
+  journal={Optics express},
+  volume={17},
+  number={15},
+  pages={12540--12545},
+  year={2009},
+  publisher={Optical Society of America}
+}
+
+@article{kak1988,
+  title={Principles of computerized tomographic imaging},
+  author={Kak, Avinash C and Slaney, Malcolm},
+  journal={IEEE, New York},
+  year = {1988}
+}
+
+@misc{danielsson1997,
+  title={Iterative techniques for projection and backprojection},
+  author={P.E. Danielsson},
+  year={1997},
+  publisher={Technical report, Department of Electrical Engineering Linkopig University}
+}
+
+@MISC{mueller1998,
+    author = {Klaus Mueller},
+    title = {Fast And Accurate Three-Dimensional Reconstruction From Cone-Beam Projection Data Using Algebraic Methods},
+    year = {1998},
+    publisher = {PhD thesis, The Ohio State University}
+}
+
+@article{mueller1999,
+  title={Fast implementations of algebraic methods for three-dimensional reconstruction from cone-beam data},
+  author={Mueller, Klaus and Yagel, Roni and Wheller, John J},
+  journal={Medical Imaging, IEEE Transactions on},
+  volume={18},
+  number={6},
+  pages={538--548},
+  year={1999},
+  publisher={IEEE}
+}
+
+@article{hentschel2005,
+   title = {Direct iterative reconstruction of computed tomography trajectories (DIRECT)},
+   author = {M. P. Hentschel, A. Lange, J. Schors},
+   journal = {Proc. SPIE},
+   volume = {5766},
+   number = {25},
+   year = {2005} 
+}
+
+@article{helfen2007,
+  title={Synchrotron-radiation computed laminography for high-resolution three-dimensional imaging of flat devices},
+  author={Helfen, Lukas and Myagotin, Anton and Rack, Alexander and Pernot, Petra and Mikul{\'\i}k, Petr and Di Michiel, Marco and Baumbach, Tilo},
+  journal={physica status solidi (a)},
+  volume={204},
+  number={8},
+  pages={2760--2765},
+  year={2007},
+  publisher={Wiley Online Library}
+}
+
+@online{nvidiacuda,
+	author = {nvidia},
+	title = {Cuda zone},
+	year = {2014},
+	url = {http://www.nvidia.com/cuda}
+}
+
+@article{owens2008,
+  title={GPU computing},
+  author={Owens, John D and Houston, Mike and Luebke, David and Green, Simon and Stone, John E and Phillips, James C},
+  journal={Proceedings of the IEEE},
+  volume={96},
+  number={5},
+  pages={879--899},
+  year={2008},
+  publisher={IEEE}
+}
+
+@online{opencl,
+  author = {Khronos},
+  title = {OpenCL: The open standard for parallel programming of heterogeneous systems},
+  year = {2014},
+  url= {http://www.khronos.org/opencl}
+}
+
+
+@article{rolo2014cine,
+  title={In vivo X-ray cine-tomography for tracking morphological dynamics},
+  author={dos Santos Rolo, Tomy and Ershov, Alexey and van de Kamp, Thomas and Baumbach, Tilo},
+  journal={Proceedings of the National Academy of Sciences},
+  volume={111},
+  number={11},
+  pages={3921--3926},
+  year={2014},
+  publisher={National Acad Sciences}
+}
+
+