A characterization of a minimal submanifold in R n + p Themis Koufogiorgos (1983) Annales Polonici Mathematici
A functional expression for the curvature of hyper-dimensional Riemannian spaces. Sarić, Branko (2000) Lobachevskii Journal of Mathematics
An angle metric through the notion of Grassmann representative. Kalogeropoulos, Grigoris I., Karageorgos, Athanasios D., Pantelous, Athanasios A. (2009) ELA. The Electronic Journal of Linear Algebra [electronic only]
An integral geometry problem in a nonconvex domain. Sharafutdinov, V.A. (2002) Sibirskij Matematicheskij Zhurnal