Michael Böttner. Variable-free semantics for anaphora. J. Philosophical Logic, 21(4):375-390, 1992. [doi]
@article{Bottner92, title = {Variable-free semantics for anaphora}, author = {Michael Böttner}, year = {1992}, doi = {10.1007/BF00260742}, url = {http://dx.doi.org/10.1007/BF00260742}, researchr = {https://researchr.org/publication/Bottner92}, cites = {0}, citedby = {0}, journal = {J. Philosophical Logic}, volume = {21}, number = {4}, pages = {375-390}, }