The H1 Forward Track Detector at HERA II
  In order to maintain efficient tracking in the forward region of H1 after the luminosity upgrade of the HERA machine, the H1 Forward Track Detector was also upgraded. While much of the original software and techniques used for the HERA I phase could be reused, the software for pattern recognition was completely rewritten. This, along with several other improvements in hit finding and high-level track reconstruction, are described in detail together with a summary of the performance of the detector. 
P. J. Laycock, R. C. W. Henderson, S. J. Maxfield, J. V. Morris, G. D.   Patel and D. P. C. Sankey
physics.ins-det hep-ex