Citations refer to the original publication, not to a Scieee localized version.
Orellana Martín, D. (2017). P Systems with Active Cells. Fenix Editora. https://idus.us.es/items/c985894a-e276-4ede-b524-a526f9759265
Orellana Martín, David. P Systems with Active Cells. Fenix Editora, 2017. https://idus.us.es/items/c985894a-e276-4ede-b524-a526f9759265.
Orellana Martín, David. P Systems with Active Cells. Fenix Editora, 2017. https://idus.us.es/items/c985894a-e276-4ede-b524-a526f9759265.
Orellana Martín, D. (2017) P Systems with Active Cells. Fenix Editora. Available at: https://idus.us.es/items/c985894a-e276-4ede-b524-a526f9759265.
D. Orellana Martín, “P Systems with Active Cells,” Fenix Editora, 2017. [Online]. Available: https://idus.us.es/items/c985894a-e276-4ede-b524-a526f9759265
@misc{orellanamartin2017systems,
author = {Orellana Martín, David},
title = {P Systems with Active Cells},
year = {2017},
publisher = {Fenix Editora},
url = {https://idus.us.es/items/c985894a-e276-4ede-b524-a526f9759265}
}
The source metadata has no journal, volume or pages. Add them from the original publication if your citation needs them.