An overview of Christoffel symbols and covariant derivative
Federico, P (2020). Christoffel symbols. Afribary.com: Retrieved March 03, 2021, from https://afribary.com/works/christoffel-symbols
Pagano, Federico. "Christoffel symbols" Afribary.com. Afribary.com, 08 Sep. 2020, https://afribary.com/works/christoffel-symbols . Accessed 03 Mar. 2021.
Pagano, Federico. "Christoffel symbols". Afribary.com, Afribary.com, 08 Sep. 2020. Web. 03 Mar. 2021. < https://afribary.com/works/christoffel-symbols >.
Pagano, Federico. "Christoffel symbols" Afribary.com (2020). Accessed March 03, 2021. https://afribary.com/works/christoffel-symbols