@article{AMI_1999_26_a8, author = {Bertalan Kir\'aly}, title = {A {Sehgal{\textquoteright}s} problem}, journal = {Annales mathematicae et informaticae}, pages = {57--73}, publisher = {mathdoc}, volume = {26}, year = {1999}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AMI_1999_26_a8/} }