1. V. A. Sharafutdinov, Integral Geometry of Tensor Fields [in Russian], Nauka, Novosibirsk (1993).
2. V. Sharafutdinov, “Slice-by-slice reconstruction algorithm for vector tomoghraphy with incomplete data,” Inv. Probl., 23, No. 6, 2603–2627 (2007).
3. V. Yu. Gubarev, “On the subspace L((x ∧ y) m ) of $$ {S^m}\left( {{ \wedge^2}{\mathbb{R}^4}} \right) $$ ,” Sib. Mat. Zh., 50, No. 3, 503–514 (2009).
4. A. I. Kostrikin and Yu. I. Manin, Linear Algebra and Geometry [in Russian], MGU, Moscow (1980).
5. J. A. MacDougall, “A survey of length problems in Grassmann spaces,” in Algebraic Structures and Applications, Lect. Notes Pure Appl. Math., 74, Marcel Dekker (1982), pp. 133–148.