1. O. V. Kravtsova and B. K. Durakov, “A Semifield Plane of Odd Order Admitting an Autotopism Subgroup Isomorphic to A5,” Sib. Math. J., 59, No. 2, 309-322 (2018).
2. D. R. Hughes and F. C. Piper, Projective Planes, Grad. Texts Math., 6, Springer-Verlag, New York (1973).
3. N. L. Johnson, V. Jha, and M. Biliotti, Handbook of Finite Translation Planes, Pure Appl. Math., Boca Raton, 289, Chapman & Hall/CRC, Boca Raton, FL (2007).
4. A. G. Kurosh, Lectures in General Algebra, Lan’, St. Petersburg (2007).
5. Unsolved Problems in Group Theory, The Kourovka Notebook, No. 19, Institute of Mathematics SO RAN, Novosibirsk (2018); http://www.math.nsc.ru/∼alglog/19tkt.pdf.