1. Babenko V.F.: Interpolation of continuous functions by piecewise linear ones. Math. Notes 24(1), 43–53 (1978)
2. Babenko V., Babenko Yu., Ligun A., Shumeiko A.: On asymptotical behavior of the optimal linear spline interpolation error of C 2 functions. East J. Approx. 12(1), 71–101 (2006)
3. Babenko Yu., Babenko V., Skorokhodov D.: Exact asymptotics of the optimal L p,Ω-error of linear spline interpolation. East J. Approx. 14(3), 285–317 (2008)
4. Babenko, Yu.: On the asymptotic behavior of the optimal error of spline interpolation of multivariate functions. PhD thesis (2006)
5. Babenko, Yu.: Exact asymptotics of the uniform error of interpolation by multilinear splines. J. Approx. Theory (to appear)