@article{10_21136_CMJ_1976_101382,
     author = {Kundu, N. K.},
     title = {On symmetric derivatives and on properties of {Zahorski}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {154--160},
     publisher = {mathdoc},
     volume = {26},
     number = {1},
     year = {1976},
     doi = {10.21136/CMJ.1976.101382},
     mrnumber = {0399377},
     zbl = {0329.26010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1976.101382/}
}