1. Bernstein, S.N.: Sur une propriété de polinômes. Comm. Soc. Math. Kharkow Sér. 2. 14, 1-2, 1–6 (1913) In: Collected Works, Volume 1, Izd. AN SSSR, Moscow, 146–150 (1952)
2. Bernstein, S.N.: Sur la limitation des dérivées des polynomes. C. R. Acad. Sci. Paris 190, 338–341 (1930)
3. Bojanov, B.: The conjecture of Sendov about the critical points of polynomials. Fiz.-Mat. Spisanie, 140–150 (1984)
4. Bojanov, B.: Markov-type inequalities for polynomials and splines. 31–90. In: Approximation Theory X: Abstract and Classical Analysis, Charles Chui, L.L. Schumaker, and J. Stöckler (eds.), Vanderbilt University Press, Nashville, TN (2002)
5. Bojanov, B., Rahman, Q.I., Szynal, J.: On a conjecture of Sendov about the critical points of a polynomial. Math. Z. 190, No 2, 281–186 (1985)