@article{shieber-1993-problem, title = "The problem of logical form equivalence", author = "Shieber, Stuart M.", editor = "Hirschberg, Julia", journal = "Computational Linguistics", volume = "19", number = "1", year = "1993", address = "Cambridge, MA", publisher = "MIT Press", url = "https://preview.aclanthology.org/fix-sig-urls/J93-1008/", pages = "179--190" }