@article{10_37236_10774,
     author = {Daniel W. Cranston and Bernard Lidick\'y and  Xiaonan Liu and  Abhinav Shantanam},
     title = {Planar {Tur\'an} numbers of cycles: a counterexample},
     journal = {The electronic journal of combinatorics},
     year = {2022},
     volume = {29},
     number = {3},
     doi = {10.37236/10774},
     zbl = {1496.05077},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/10774/}
}