@article{TM2_2011_XIV_1_a2,
     author = {Attila M\'ader and G\'eza Makay},
     title = {The maximum number of rectangular islands},
     journal = {The Teaching of Mathematics},
     pages = {31 },
     year = {2011},
     volume = {XIV},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_2011_XIV_1_a2/}
}