1. Chebyshev Systems: With Applications in Analysis and Statistics;Karlin,1966
2. On a theorem of Hoel and Levine on extrapolation designs;Kiefer;Ann. Math. Statist.,1965
3. Some properties of Chebyshev systems;Volkov;Kalinin. Gos. Ped. Inst. Učen. Zap.,1958
4. Transformations of the Chebyshev systems;Nemeth;Mathematica (Cluj),1966
5. About the extension of the domain of definition of the Chebyshev systems defined on intervals of the real axis;Nemeth;Mathematica (Cluj),1969