@InProceedings{BeckertHaehnleManya99,
author = {Bernhard Beckert and Reiner H{\"a}hnle and Felip Many{\`a}},
title = {Transformations between Signed and Classical Clause Logic},
booktitle = {International Symposium on Multiple-Valued Logic ({ISMVL} 1999)},
venue = {Freiburg, Germany},
publisher = {{IEEE} Computer Society},
year = {1999}
}
