@article{10_4064_ap_28_3_327_334,
     author = {A. K. Varma},
     title = {Concerning the order approximation of periodic continuous functions by trigonometric interpolation polynomials {II}},
     journal = {Annales Polonici Mathematici},
     pages = {327--334},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1973},
     doi = {10.4064/ap-28-3-327-334},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-28-3-327-334/}
}