@article{10_1017_S0017089512000523,
     author = {FAN, MING},
     title = {K-ENVELOPES {FOR} {REAL} {INTERPOLATION} {METHODS}},
     journal = {Glasgow mathematical journal},
     pages = {293--307},
     year = {2013},
     volume = {55},
     number = {2},
     doi = {10.1017/S0017089512000523},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089512000523/}
}