Projective models of unitary spaces of constant curvature over an algebra of dual numbers
N. V. Talantova, A. P. Shirokov

This publication is cited in the following articles:

1. I. Hinterleitner, J. Mikesh, Ya. Stranska, “Infinitesimal $F$-planar transformations”, Russian Math. (Iz. VUZ), 52:4 (2008), 13–18