Bargueño, P., & Contreras, E. (2023). The Geroch-Held-Penrose Calculus: Fundamentals and Applications (1st ed. 2023.). Springer Nature Switzerland : Imprint: Springer. https://doi.org/10.1007/978-3-031-42948-4

Bargueño, Pedro, and Ernesto Contreras. The Geroch-Held-Penrose Calculus: Fundamentals and Applications. 1st ed. 2023. Cham: Springer Nature Switzerland : Imprint: Springer, 2023. https://doi.org/10.1007/978-3-031-42948-4.

Bargueño, Pedro, and Ernesto Contreras. The Geroch-Held-Penrose Calculus: Fundamentals and Applications. 1st ed. 2023. Springer Nature Switzerland : Imprint: Springer, 2023. https://doi.org/10.1007/978-3-031-42948-4.