Feng Dai. Some equivalence theorems with K-functionals. Journal of Approximation Theory, 121(1):143-157, 2003. [doi]
@article{Dai03:2,
title = {Some equivalence theorems with K-functionals},
author = {Feng Dai},
year = {2003},
doi = {10.1016/S0021-9045(02)00059-X},
url = {http://dx.doi.org/10.1016/S0021-9045(02)00059-X},
researchr = {https://researchr.org/publication/Dai03%3A2},
cites = {0},
citedby = {0},
journal = {Journal of Approximation Theory},
volume = {121},
number = {1},
pages = {143-157},
}