@article{instance1271,
	 title = {{Mixed-Level Knowledge Representations and Variable-Depth Inference in Natural Language Processing}},
	 author = {M Hess},
	 year = {1997},
	 journal = {International Journal on Artificial Intelligence Tools (IJAIT)},
	 pages = {481-509},
	 volume = {6},
	 number = {4},
	 Date-Added = {2026-08-02 22:38:35},
	 Date-Modified = {2026-08-03 07:48:24}
}