Arroyo Guevara, A. M., &; Felsner, S. (2022). Approximating the bundled crossing number. In WALCOM 2022: Algorithms and Computation (Vol. 13174, pp. 383–395). Jember, Indonesia: Springer Nature.https://doi.org/10.1007/978-3-030-96731-4_31 
LibreCat: https://research-explorer.ista.ac.at/record/11185
DOI: 10.1007/978-3-030-96731-4_31
arXiv: 2109.14892