@article{00572391, title = {Some results on the Pompeiu problem.}, journal = {Annales Academiae Scientiarum Fennicae. Mathematica}, volume = {18}, year = {1993}, pages = {323-341}, zbl = {0793.30034}, language = {en}, url = {http://dml.mathdoc.fr/item/00572391} }
Ebenfelt, Peter. Some results on the Pompeiu problem.. Annales Academiae Scientiarum Fennicae. Mathematica, Tome 18 (1993) pp. 323-341. http://gdmltest.u-ga.fr/item/00572391/