APA (7th ed.) Citation

Patrício, P., & Costa, A. V. d. (2009). On the Drazin index of regular elements.

Chicago Style (17th ed.) Citation

Patrício, Pedro, and A. Veloso da Costa. On the Drazin Index of Regular Elements. 2009.

MLA (8th ed.) Citation

Patrício, Pedro, and A. Veloso da Costa. On the Drazin Index of Regular Elements. 2009.

Warning: These citations may not always be 100% accurate.