Rohit Parikh. States of Knowledge. Electronic Notes in Theoretical Computer Science, 67:49-60, 2002. [doi]
@article{Parikh02, title = {States of Knowledge}, author = {Rohit Parikh}, year = {2002}, url = {http://www.elsevier.com/gej-ng/31/29/23/124/25/show/Products/notes/index.htt#006}, researchr = {https://researchr.org/publication/Parikh02}, cites = {0}, citedby = {0}, journal = {Electronic Notes in Theoretical Computer Science}, volume = {67}, pages = {49-60}, }