@article{bwmeta1.element.desklight-349d449f-e179-4bde-b1c2-1765445dad93,
author = {L. V. Toralballa},
title = {Piecewise flatness and surface area},
journal = {Annales Polonici Mathematici},
volume = {21},
year = {1969},
pages = {223-230},
zbl = {0174.53803},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-349d449f-e179-4bde-b1c2-1765445dad93}
}
L. V. Toralballa. Piecewise flatness and surface area. Annales Polonici Mathematici, Tome 21 (1969) pp. 223-230. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-349d449f-e179-4bde-b1c2-1765445dad93/