@article{02135728, title = {Irreducible cyclic presentations of the trivial group.}, journal = {Experimental Mathematics}, volume = {12}, year = {2003}, pages = {487-490}, doi = {10.1080/10586458.2003.10504516}, zbl = {1062.20036}, language = {en}, url = {http://dml.mathdoc.fr/item/02135728} }
Havas, George; Robertson, Edmund F. Irreducible cyclic presentations of the trivial group.. Experimental Mathematics, Tome 12 (2003) pp. 487-490. doi : 10.1080/10586458.2003.10504516. http://gdmltest.u-ga.fr/item/02135728/