Cangul, İ. N. And Singerman, D. 1998. Normal subgroups of Hecke groups and regular maps. MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY , vol.123 , 59-74.

Cangul, İ. N., & Singerman, D., (1998). Normal subgroups of Hecke groups and regular maps. MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY , vol.123, 59-74.

Cangul, İSMAİL, And D Singerman. "Normal subgroups of Hecke groups and regular maps," MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY , vol.123, 59-74, 1998

Cangul, İSMAİL N. And Singerman, D. "Normal subgroups of Hecke groups and regular maps." MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY , vol.123, pp.59-74, 1998

Cangul, İ. N. And Singerman, D. (1998) . "Normal subgroups of Hecke groups and regular maps." MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY , vol.123, pp.59-74.

@article{article, author={İSMAİL NACİ CANGÜL And author={D Singerman}, title={Normal subgroups of Hecke groups and regular maps}, journal={MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY}, year=1998, pages={59-74} }