1. Saxena RB, Tripathi(Lucknow) HC. (0,2,3) and (0,1,3) interpolation through splines. Acta Math Hung 1997;50(1–2):63–9.
2. Theory of Birkhoff interpolation;Shi,2003
3. Birkhoff interpolation;Lorentz,1983
4. Lacunary Pál – type interpolation and over-convergence;de Bruin;Com. Meth. Fun. The,2003
5. Birkhoff interpolation on nonuniformly distributed roots of unity II;de Bruin;Jor Com App Math,2001