A new proof of the existence of the minimum for a classical integral
Compositio Mathematica, Volume 11 (1953), p. 37-43
@article{CM_1953__11__37_0,
author = {Bertolini, Fernando},
title = {A new proof of the existence of the minimum for a classical integral},
journal = {Compositio Mathematica},
publisher = {Kraus Reprint},
volume = {11},
year = {1953},
pages = {37-43},
zbl = {0050.32503},
mrnumber = {56207},
language = {en},
url = {http://www.numdam.org/item/CM_1953__11__37_0}
}

Bertolini, Fernando. A new proof of the existence of the minimum for a classical integral. Compositio Mathematica, Volume 11 (1953) pp. 37-43. http://www.numdam.org/item/CM_1953__11__37_0/