Michael Byrd. Knowledge and true belief in Hintikka's epistemic logic. J. Philosophical Logic, 2(2):181-192, 1973. [doi]
@article{Byrd73, title = {Knowledge and true belief in Hintikka's epistemic logic}, author = {Michael Byrd}, year = {1973}, doi = {10.1007/BF00263356}, url = {http://dx.doi.org/10.1007/BF00263356}, researchr = {https://researchr.org/publication/Byrd73}, cites = {0}, citedby = {0}, journal = {J. Philosophical Logic}, volume = {2}, number = {2}, pages = {181-192}, }