@article{VPC,
 author = {Martin Burtscher and Ilya Ganusov and Sandra J. Jackson and Jian Ke and Paruj Ratanaworabhan and Nana B. Sam},
 title = {The VPC Trace-Compression Algorithms},
 journal = {IEEE Trans. Comput.},
 volume = {54},
 number = {11},
 year = {2005},
 issn = {0018-9340},
 pages = {1329--1344},
 }