@article{GDZPPN002211327,
title = {On quasiconvex equimeasurable rearrangement, a counterexample and an example.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {450},
year = {1994},
pages = {63-82},
zbl = {0848.35003},
url = {http://dml.mathdoc.fr/item/GDZPPN002211327}
}
Laurence, Peter; Stredulinsky, Edward. On quasiconvex equimeasurable rearrangement, a counterexample and an example.. Journal für die reine und angewandte Mathematik, Tome 450 (1994) pp. 63-82. http://gdmltest.u-ga.fr/item/GDZPPN002211327/