@article{TM2_2013_XVI_1_a2,
     author = {Tuzson Zolt\'an},
     title = {From matchstick puzzles to isoperimetric problems},
     journal = {The Teaching of Mathematics},
     pages = {12 },
     publisher = {mathdoc},
     volume = {XVI},
     number = {1},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_2013_XVI_1_a2/}
}