@incollection{sep-logic-epistemic, author = {Rendsvig, Rasmus~K. and Symons, John}, title = {Epistemic Logic}, booktitle = {The Stanford Encyclopedia of Philosophy}, editor = {Edward N. Zalta}, howpublished = {\url{https://plato.stanford.edu/archives/sum2019/entries/logic-epistemic/}}, year = {2019}, edition = {Summer 2019}, publisher = {Metaphysics Research Lab, Stanford University}, url = {https://plato.stanford.edu/entries/logic-epistemic/} }