Citations refer to the original publication, not to a Scieee localized version.
Cuéllar Guerrero, L. (2020). El Stock de capital en Cataluña. https://idus.us.es/items/060285be-4132-42fc-b40c-2ece0d96ebd9
Cuéllar Guerrero, Laura. El Stock de capital en Cataluña. 2020. https://idus.us.es/items/060285be-4132-42fc-b40c-2ece0d96ebd9.
Cuéllar Guerrero, Laura. El Stock de capital en Cataluña. 2020. https://idus.us.es/items/060285be-4132-42fc-b40c-2ece0d96ebd9.
Cuéllar Guerrero, L. (2020) El Stock de capital en Cataluña. Available at: https://idus.us.es/items/060285be-4132-42fc-b40c-2ece0d96ebd9.
L. Cuéllar Guerrero, “El Stock de capital en Cataluña,” 2020. [Online]. Available: https://idus.us.es/items/060285be-4132-42fc-b40c-2ece0d96ebd9
@misc{cuellarguerrero2020stock,
author = {Cuéllar Guerrero, Laura},
title = {El Stock de capital en Cataluña},
year = {2020},
url = {https://idus.us.es/items/060285be-4132-42fc-b40c-2ece0d96ebd9}
}
The source metadata has no journal, volume or pages. Add them from the original publication if your citation needs them.