%0 Journal Article
%@ 0001-6969
%A  Mukhopadhyay S. N.
%D 1972
%F acta:14356
%J Acta scientiarum mathematicarum
%K Matematika
%N 3-4
%P 207-210
%T On a property of approximate derivatives
%U http://acta.bibl.u-szeged.hu/14356/
%V 33
%Z Bibliogr.: 210. p.