@INPROCEEDINGS{hartl2012spiefhSPECT,
  author = {Alexander Hartl and Dzhoshkun I. Shakir and Risto Kojchev and Nassir Navab and Sibylle Ziegler and Tobias Lasser},
  title = {Freehand SPECT reconstructions using look up tables},
  booktitle = {Proceedings of SPIE Medical Imaging Conference (SPIE2012) 2012},
  year = {2012},
  address = {San Diego, USA},
  month = {February},
  organization = {},
}