1. K. I. Oskolkov, “Approximation properties of summable functions on sets of full measure,”Mat. Sb.,103, No. 4, 563–589 (1977).
2. V. E. Maiorov, “On linear widths of Sobolev classes,”Dokl. Akad. Nauk SSSR,243, No. 5, 1127–1130 (1978).
3. R. A. De Vore, B. Jawerth, and B. J. Lucier, “Image compression through wavelet transform coding,”IEEE Trans. Inf. Theory,38, No. 2, 719–746 (1992).
4. R. F. Hess and E. R. Howell, “The threshold contrast sensitivity function in strabismic amblyopia: Evidence for two type classification,”Vision Res.,17, 1049–1055 (1977).
5. B. S. Kashin, “On approximation properties of complete orthonormal systems,”Tr. Mat. Inst. Steklov,172, 187–191 (1985).