@article{01716633,
title = {Flett's mean value theorem in topological vector spaces.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {25},
year = {2001},
pages = {689-694},
doi = {10.1155/S016117120101078X},
zbl = {1006.58007},
language = {en},
url = {http://dml.mathdoc.fr/item/01716633}
}
Powers, Robert C.; Riedel, Thomas; Sahoo, Prasanna K. Flett's mean value theorem in topological vector spaces.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 689-694. doi : 10.1155/S016117120101078X. http://gdmltest.u-ga.fr/item/01716633/