Nicklas Ekstrand Bela Rathonyi Yuri M. Shtarkov Ben J. M. Smeets The Qualitative Modeling and Compression of the Request Sequences in ARQ Protocols. 494 2001 Data Compression Conference http://computer.org/proceedings/dcc/1031/10310494.pdf db/conf/dcc/dcc2001.html#EkstrandRSS01