@article{00902758,
title = {A note on the convexity theorem for mean values of subtemperatures.},
journal = {Annales Academiae Scientiarum Fennicae. Mathematica},
volume = {21},
year = {1996},
pages = {111-115},
zbl = {0851.31004},
language = {en},
url = {http://dml.mathdoc.fr/item/00902758}
}
Brzezina, Miroslav. A note on the convexity theorem for mean values of subtemperatures.. Annales Academiae Scientiarum Fennicae. Mathematica, Tome 21 (1996) pp. 111-115. http://gdmltest.u-ga.fr/item/00902758/