Andrzej Ehrenfeucht, Gheorghe Paun, Grzegorz Rozenberg. The Linear Landscape of External Contextual Languages. Acta Informatica, 33(6):571-593, 1996.
@article{EhrenfeuchtPR96,
title = {The Linear Landscape of External Contextual Languages},
author = {Andrzej Ehrenfeucht and Gheorghe Paun and Grzegorz Rozenberg},
year = {1996},
researchr = {https://researchr.org/publication/EhrenfeuchtPR96},
cites = {0},
citedby = {0},
journal = {Acta Informatica},
volume = {33},
number = {6},
pages = {571-593},
}