@article{GDZPPN002358433, title = {The Galois group of the tangency problem for plane curves.}, journal = {Mathematica Scandinavica}, volume = {56}, year = {1985}, pages = {171-190}, zbl = {0566.14024}, url = {http://dml.mathdoc.fr/item/GDZPPN002358433} }
Hefez, A.; Sacchiero, G. The Galois group of the tangency problem for plane curves.. Mathematica Scandinavica, Tome 56 (1985) pp. 171-190. http://gdmltest.u-ga.fr/item/GDZPPN002358433/