@techreport{2009-PMS,
  author = {C. P\"{o}schl and J. Modersitzki and O.~Scherzer},
  title = {A Variational Setting for Volume Constrained Image Registration},
  institution = {NFN 092: Joint Research Program of Industrial Geometry}, 
  year = {2009},
  month = {2},
  JMnote = {\JMnote{2009-PMS}{2009-PMS}{2009-PMS.pdf}},
}