@article{ITA_1993__27_2_135_0, author = {Bertoni, A. and Goldwurm, M.}, title = {On ranking 1-way finitely ambiguous {NL} languages and $\# P_1$-complete census functions}, journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications}, pages = {135--148}, publisher = {EDP-Sciences}, volume = {27}, number = {2}, year = {1993}, zbl = {0780.68082}, mrnumber = {1217682}, language = {en}, url = {http://www.numdam.org/item/ITA_1993__27_2_135_0/} }