@article{ITA_1990__24_3_241_0,
     author = {Milani, Masoud T. and Workman, David A.},
     title = {Epsilon weak precedence grammars and languages},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {241--266},
     publisher = {EDP-Sciences},
     volume = {24},
     number = {3},
     year = {1990},
     mrnumber = {1072993},
     zbl = {0701.68066},
     language = {en},
     url = {http://www.numdam.org/item/ITA_1990__24_3_241_0/}
}