@article{AMI_2006_33_a1,
     author = {Andrew Bremner},
     title = {On {Heron} triangles},
     journal = {Annales mathematicae et informaticae},
     pages = {15--21},
     publisher = {mathdoc},
     volume = {33},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMI_2006_33_a1/}
}