@article{AMI_1999_26_a13,
     author = {Orosz Gyul\'an\'e},
     title = {Matematikafeladatok \'erdekess\'ege, neh\'ezs\'ege a tanul\'ok {szemsz\"og\'eb\H{o}l}},
     journal = {Annales mathematicae et informaticae},
     pages = {107--114},
     publisher = {mathdoc},
     volume = {26},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMI_1999_26_a13/}
}