@article{JGG_2017_21_2_JGG_2017_21_2_a3,
     author = {K. Myrianthis },
     title = {Geometry and {Design} of {Hexagonal} {Spirals} {(Voronoi} and {Other)}},
     journal = {Journal for geometry and graphics},
     pages = {179--192},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {2017},
     url = {http://geodesic.mathdoc.fr/item/JGG_2017_21_2_JGG_2017_21_2_a3/}
}