1. An inequality of Duffin and Schaeffer type;Bojanov;East. J. Approx.,1995
2. Spline Functions and Multivariate Interpolations;Bojanov,1993
3. A remark concerning perfect splines;de Boor;Bull. Amer. Math. Soc.,1974
4. A refinement of an inequality of the brothers Markoff;Duffin;Trans. Amer. Math. Soc.,1941
5. Derivative functionals of an algebraic polynomial and V. A. Markov's theorem;Gusev;Izv. Akad. Nauk SSSR Ser. Mat.,1961