@article{article, title = {{Meeting of the Association for Symbolic Logic Leeds 1967.}}, url = {{}}, year = {{1968}}, month = {{1}}, author = {{Lob MH and Drake FR and Derrick J}}, volume = {{33}}, journal = {{J. Symb. Log.}}, pages = {{490-490}}, note = {{Accessed on 2025/01/13}}}