APA (7th ed.) Citation

Billhardt, B., Giraldes, E., Smith, M. P. M., & Martins, P. M. (2009). Associate inverse subsemigroups of regular semigroups.

Chicago Style (17th ed.) Citation

Billhardt, Bernd, E. Giraldes, M. Paula Marques Smith, and Paula Mendes Martins. Associate Inverse Subsemigroups of Regular Semigroups. 2009.

MLA (8th ed.) Citation

Billhardt, Bernd, et al. Associate Inverse Subsemigroups of Regular Semigroups. 2009.