Badyaeva Zinaida Petrovna, Bukhtyak Mikhail Stepanovych «Semi-stable second-order polynomials on the varifold of rays of the A
space» // 2013. №1(21) C.5-12
Mizin A.G. «Hypercomplexes of two-dimensional planes in projective space P6 » // 2009. №1 (5) C.17-26
