@article{01868878,
title = {On variation of the volume under infinitesimal bending of a closed rotational surface.},
journal = {Novi Sad Journal of Mathematics},
volume = {29},
year = {1999},
pages = {377-386},
zbl = {1075.53501},
language = {en},
url = {http://dml.mathdoc.fr/item/01868878}
}
Velimirović, Ljubica S. On variation of the volume under infinitesimal bending of a closed rotational surface.. Novi Sad Journal of Mathematics, Tome 29 (1999) pp. 377-386. http://gdmltest.u-ga.fr/item/01868878/