@article{10_21136_AM_1972_103391,
     author = {Kofro\v{n}, Josef},
     title = {Die ableitungsfreien {Fehlerabsch\"atzungen} von {Quadraturformeln.} {I}},
     journal = {Applications of Mathematics},
     pages = {39--52},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {1972},
     doi = {10.21136/AM.1972.103391},
     mrnumber = {0293842},
     zbl = {0268.65017},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1972.103391/}
}