- Blagovest Hristov Sendov at Wikipedia.

- Blagovest Hristov Sendov at Mathematics Genealogy Project.

- Blagovest Hristov Sendov at MathSciNet (for those with access).

- Blagovest Hristov Sendov, Home Page.

- In Memoriam: Blagovest Sendov February 8, 1932-January 19, 2020,
*J. Approx. Theory***254**(2020). For those with access, this article may be viewed at Science Direct.

- Bojanov, Borislav,
Blagovest Sendov and his contribution to approximation theory,
*Approximation theory, DARBA, Sofia*(2002), ii-xi.

- Drensky, V., and S. Troyanski,
75th anniversary of Academician Blagovest Sendov,
*Serdica Math. J.***33**(2007), iii-iv.