Sholomov L.A. «On a comparison of underdetermined alphabets» // Applied Discrete Mathematics 2014. №7 (Приложение) C.34-36
Sholomov L.A. «On a comparison of underdetermined alphabets» // 2014. №7 C.34-36
Sholomov L. A. «On the concept of underdetermined alphabets of equal strength» // Applied Discrete Mathematics 2014. №3 (25) C.40-57