@article{05770436, title = {Crossed ladders and Euler's quartic.}, journal = {Annales Mathematicae et Informaticae}, volume = {36}, year = {2008}, pages = {29-41}, zbl = {1212.11050}, language = {en}, url = {http://dml.mathdoc.fr/item/05770436} }
Bremner, A.; Høibakk, R.; Lukkassen, D. Crossed ladders and Euler's quartic.. Annales Mathematicae et Informaticae, Tome 36 (2008) pp. 29-41. http://gdmltest.u-ga.fr/item/05770436/