@article{10_4064_fm_88_2_133_143,
     author = {S. Mukhopadhyay},
     title = {On the approximate {Peano} derivatives},
     journal = {Fundamenta Mathematicae},
     pages = {133--143},
     publisher = {mathdoc},
     volume = {88},
     number = {2},
     year = {1975},
     doi = {10.4064/fm-88-2-133-143},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-88-2-133-143/}
}