@article{article, title = {{Existential monadic second order logic of undirected graphs: The Le Bars conjecture is false}}, publisher = {{Elsevier BV}}, url = {{http://dx.doi.org/10.1016/j.apal.2018.12.001 }}, year = {{2019}}, month = {{4}}, author = {{Popova SN and Zhukovskii ME}}, doi = {{10.1016/j.apal.2018.12.001}}, volume = {{170}}, journal = {{Annals of Pure and Applied Logic}}, issue = {{4}}, pages = {{505-514}}, note = {{Accessed on 2025/07/23}}}