@article{GDZPPN002354462,
title = {An inequality for convex curves in the plane.},
journal = {Mathematica Scandinavica},
volume = {40},
year = {1977},
pages = {293-300},
zbl = {0369.52005},
url = {http://dml.mathdoc.fr/item/GDZPPN002354462}
}
Sjöln, Per. An inequality for convex curves in the plane.. Mathematica Scandinavica, Tome 40 (1977) pp. 293-300. http://gdmltest.u-ga.fr/item/GDZPPN002354462/