APA (7th ed.) Citation

Pinto da Costa, A., Martins, J. A. C., Figueiredo, I. N., & Júdice, J. J. (2004). The directional instability problem in systems with frictional contacts.

Chicago Style (17th ed.) Citation

Pinto da Costa, A., J. A. C. Martins, I. N. Figueiredo, and J. J. Júdice. The Directional Instability Problem in Systems with Frictional Contacts. 2004.

MLA (8th ed.) Citation

Pinto da Costa, A., et al. The Directional Instability Problem in Systems with Frictional Contacts. 2004.