@article{ARM_1983_19_3_a6,
     author = {\v{R}{\'\i}ha, S. and Sekanina, Milan},
     title = {Squares of triangular cacti},
     journal = {Archivum mathematicum},
     pages = {153--160},
     year = {1983},
     volume = {19},
     number = {3},
     mrnumber = {725198},
     zbl = {0545.05044},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1983_19_3_a6/}
}