Sinha, R. S. “Generalisations of Gauss-Codazzi Equations for Second of Cartan’s Curvature Tensors in a Hypersurface of a Finsler Space”. The Journal of the Indian Mathematical Society, vol. 33, no. 2-4, Dec. 1969, pp. 133-40, doi:10.18311/jims/1969/16753.