1. Baley Price G., “Multivariate Analysis”, Springer Verlag, New York, (1984).
2. Borisov A. V., Integral geometry in the Galilean plane,Suppl. Rend. Circ. Mat. Palermo, serie II, No. 35, (1994), 41–66.
3. Borisov A. V., Measurable subsets of ellipses and hyperbolas in the Galilean plane,Atti Accad. Peloritana dei Pericolanti, Classe I Sc. Fis. Mat. e Nat.,LXXI (1993), 437–464.
4. Borisov A. V., Measurable sets of parabolas in the Galilean plane,Serdica-Bulg. Math. Public.,20 (1994), 83–96.
5. Borisov A. V., On the subgroups of the similarity group in the Galilean plane,Comptes Rend. Acad. Bulg. Sciences,46 (5), (1993), 19–21.