Foisy, J., Jacobs, C., Paquin, T., Schalizki, M., & Stringer, H. (2024). A Proof Using Böhme’s Lemma That no Petersen Family Graph has a Flat Embedding. The PUMP Journal of Undergraduate Research, 7, 323–332. https://doi.org/10.46787/pump.v7i0.3674