@article{01310581, title = {Computing immersed normal surfaces in the figure-eight knot complement.}, journal = {Experimental Mathematics}, volume = {8}, year = {1999}, pages = {73-84}, doi = {10.1080/10586458.1999.10504390}, zbl = {0927.57020}, language = {en}, url = {http://dml.mathdoc.fr/item/01310581} }
Rannard, Richard. Computing immersed normal surfaces in the figure-eight knot complement.. Experimental Mathematics, Tome 8 (1999) pp. 73-84. doi : 10.1080/10586458.1999.10504390. http://gdmltest.u-ga.fr/item/01310581/