Mhaid Mhdi Alhajjar, Amaresh Chandra Panda and Siva Prasad Behera. A Survey on the Crossing Number Problem. ASCNP [Internet]. 2023 Mar. 14 [cited 2026 Jun. 9];:1-52. Available from: https://stm.bookpi.org/ASCNP/article/view/9924