Citations refer to the original publication, not to a Scieee localized version.
Díaz Pernil, D., Peña Cantillana, F., & Gutiérrez Naranjo, M. Á. (2012). Skeletonizing Images by Using Spiking Neural P Systems. Fénix Editora. https://idus.us.es/items/302acb2f-c19f-4509-89c1-35b12bad9863
Díaz Pernil, Daniel, et al. Skeletonizing Images by Using Spiking Neural P Systems. Fénix Editora, 2012. https://idus.us.es/items/302acb2f-c19f-4509-89c1-35b12bad9863.
Díaz Pernil, Daniel, Francisco Peña Cantillana, and Miguel Ángel Gutiérrez Naranjo. Skeletonizing Images by Using Spiking Neural P Systems. Fénix Editora, 2012. https://idus.us.es/items/302acb2f-c19f-4509-89c1-35b12bad9863.
Díaz Pernil, D., Peña Cantillana, F. and Gutiérrez Naranjo, M. Á. (2012) Skeletonizing Images by Using Spiking Neural P Systems. Fénix Editora. Available at: https://idus.us.es/items/302acb2f-c19f-4509-89c1-35b12bad9863.
D. Díaz Pernil, F. Peña Cantillana, and M. Á. Gutiérrez Naranjo, “Skeletonizing Images by Using Spiking Neural P Systems,” Fénix Editora, 2012. [Online]. Available: https://idus.us.es/items/302acb2f-c19f-4509-89c1-35b12bad9863
@misc{diazpernil2012skeletonizing,
author = {Díaz Pernil, Daniel and Peña Cantillana, Francisco and Gutiérrez Naranjo, Miguel Ángel},
title = {Skeletonizing Images by Using Spiking Neural P Systems},
year = {2012},
publisher = {Fénix Editora},
url = {https://idus.us.es/items/302acb2f-c19f-4509-89c1-35b12bad9863}
}
The source metadata has no journal, volume or pages. Add them from the original publication if your citation needs them.