David Guaspari. Definability in Models of Set Theory. Journal of Symbolic Logic, 45(1):9-19, 1980.
@article{Guaspari80, title = {Definability in Models of Set Theory}, author = {David Guaspari}, year = {1980}, tags = {meta-model, Meta-Environment}, researchr = {https://researchr.org/publication/Guaspari80}, cites = {0}, citedby = {0}, journal = {Journal of Symbolic Logic}, volume = {45}, number = {1}, pages = {9-19}, }