@article{DBLP:journals/tcs/MadlenerO89,
author = {Klaus Madlener and
Friedrich Otto},
title = {About the Descriptive Power of Certain Classes of Finite
String-Rewriting Systems},
journal = {Theor. Comput. Sci.},
volume = {67},
number = {2{\&}3},
year = {1989},
pages = {143-172},
ee = {http://dx.doi.org/10.1016/0304-3975(89)90002-9},
bibsource = {DBLP, http://dblp.uni-trier.de}
}