Jane Tan. Small 4-regular planar graphs that are not circle representable. Australasian J. Combinatorics, 76:428-435, 2020. [doi]
@article{Tan20-11, title = {Small 4-regular planar graphs that are not circle representable}, author = {Jane Tan}, year = {2020}, url = {http://ajc.maths.uq.edu.au/pdf/76/ajc_v76_p428.pdf}, researchr = {https://researchr.org/publication/Tan20-11}, cites = {0}, citedby = {0}, journal = {Australasian J. Combinatorics}, volume = {76}, pages = {428-435}, }