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