@article{GDZPPN002108607, title = {The plank problem for symmetric bodies.}, journal = {Inventiones mathematicae}, volume = {104}, year = {1991}, pages = {535-544}, zbl = {0702.52003}, url = {http://dml.mathdoc.fr/item/GDZPPN002108607} }
Ball, Keith. The plank problem for symmetric bodies.. Inventiones mathematicae, Tome 104 (1991) pp. 535-544. http://gdmltest.u-ga.fr/item/GDZPPN002108607/