@INPROCEEDINGS{Kubalik2021SymbolicRegressionMethods, author = {Kubal{\'i}k, J. and Derner, E. and {\v Z}egklitz, J. and Babu{\v s}ka, R.}, title = {Symbolic Regression Methods for Reinforcement Learning}, journal = {IEEE Access}, volume = {9}, number = {}, pages = {139697--139711}, year = {2021} }