Cita APA (7a ed.)

Ramírez, C., Rodríguez, V., & Rivarola, R. Double excitation of helium atoms by impact of protons and highly charged ions.

Cita Chicago Style (17a ed.)

Ramírez, C.A, V.D Rodríguez, y R.D Rivarola. Double Excitation of Helium Atoms by Impact of Protons and Highly Charged Ions.

Cita MLA (8a ed.)

Ramírez, C.A, et al. Double Excitation of Helium Atoms by Impact of Protons and Highly Charged Ions.