APA (7th ed.) Citation

Aguado, A., & Madden, P. (2003). Ewald summation of electrostatic multipole interactions up to the quadrupolar level.

Chicago Style (17th ed.) Citation

Aguado, A., and P. Madden. Ewald Summation of Electrostatic Multipole Interactions Up to the Quadrupolar Level. 2003.

MLA (9th ed.) Citation

Aguado, A., and P. Madden. Ewald Summation of Electrostatic Multipole Interactions Up to the Quadrupolar Level. 2003.

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