Citations refer to the original publication, not to a Scieee localized version.
Villegas Calvo, J. A., Vázquez García de la Vega, D., & Rueda Rueda, A. (2010). 1.2V, 1.96mW @ 2.4GHz CMOS-90nm switched-transconductor mixer. https://idus.us.es/items/1a1bff76-659e-4a52-a063-43bc17c48ae7
Villegas Calvo, José Alberto, et al. 1.2V, 1.96mW @ 2.4GHz CMOS-90nm switched-transconductor mixer. 2010. https://idus.us.es/items/1a1bff76-659e-4a52-a063-43bc17c48ae7.
Villegas Calvo, José Alberto, Diego Vázquez García de la Vega, and Adoración Rueda Rueda. 1.2V, 1.96mW @ 2.4GHz CMOS-90nm switched-transconductor mixer. 2010. https://idus.us.es/items/1a1bff76-659e-4a52-a063-43bc17c48ae7.
Villegas Calvo, J. A., Vázquez García de la Vega, D. and Rueda Rueda, A. (2010) 1.2V, 1.96mW @ 2.4GHz CMOS-90nm switched-transconductor mixer. Available at: https://idus.us.es/items/1a1bff76-659e-4a52-a063-43bc17c48ae7.
J. A. Villegas Calvo, D. Vázquez García de la Vega, and A. Rueda Rueda, “1.2V, 1.96mW @ 2.4GHz CMOS-90nm switched-transconductor mixer,” 2010. [Online]. Available: https://idus.us.es/items/1a1bff76-659e-4a52-a063-43bc17c48ae7
@misc{villegascalvo201012v,
author = {Villegas Calvo, José Alberto and Vázquez García de la Vega, Diego and Rueda Rueda, Adoración},
title = {1.2V, 1.96mW @ 2.4GHz CMOS-90nm switched-transconductor mixer},
year = {2010},
url = {https://idus.us.es/items/1a1bff76-659e-4a52-a063-43bc17c48ae7}
}
The source metadata has no journal, volume or pages. Add them from the original publication if your citation needs them.