Miriam Kaeshammer (2013): Synchronous Linear Context-Free Rewriting Systems for Machine Translation. Seventh Workshop on Syntax, Semantics and Structure in Statistical Translation (SSST-7), NAACL-HLT 2013 Workshop, Atlanta, Georgia, USA.

Results in Maillette de Buy Wenniger and Sima'an (2013) for NF-ITG are slightly different because of their treatment of unaligned words. http://aclweb.org/anthology-new/W/W13/W13-0807.pdf