@article{10_21136_AM_1990_104427,
     author = {Delvos, Franz-J.},
     title = {Approximation by optimal periodic interpolation},
     journal = {Applications of Mathematics},
     pages = {451--457},
     year = {1990},
     volume = {35},
     number = {6},
     doi = {10.21136/AM.1990.104427},
     mrnumber = {1089925},
     zbl = {0743.41005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1990.104427/}
}