@article{02033403, title = {Surface-surface intersection: auxiliary spheres.}, journal = {Novi Sad Journal of Mathematics}, volume = {29}, year = {1999}, pages = {221-230}, zbl = {1029.65500}, language = {en}, url = {http://dml.mathdoc.fr/item/02033403} }
Obradović, Ratko. Surface-surface intersection: auxiliary spheres.. Novi Sad Journal of Mathematics, Tome 29 (1999) pp. 221-230. http://gdmltest.u-ga.fr/item/02033403/