Citations refer to the original publication, not to a Scieee localized version.
Hespelt, E. H. (1901). Génesis de la familia Alvareda. \\, [S.a. 19--]. https://idus.us.es/items/d2a3ad3c-36b8-4f07-9ccb-b41872f9c762
Hespelt, E. Hermann. Génesis de la familia Alvareda. \\, [S.a. 19--], 1901. https://idus.us.es/items/d2a3ad3c-36b8-4f07-9ccb-b41872f9c762.
Hespelt, E. Hermann. Génesis de la familia Alvareda. \\, [S.a. 19--], 1901. https://idus.us.es/items/d2a3ad3c-36b8-4f07-9ccb-b41872f9c762.
Hespelt, E. H. (1901) Génesis de la familia Alvareda. \\, [S.a. 19--]. Available at: https://idus.us.es/items/d2a3ad3c-36b8-4f07-9ccb-b41872f9c762.
E. H. Hespelt, “Génesis de la familia Alvareda,” \\, [S.a. 19--], 1901. [Online]. Available: https://idus.us.es/items/d2a3ad3c-36b8-4f07-9ccb-b41872f9c762
@misc{hespelt1901genesis,
author = {Hespelt, E. Hermann},
title = {Génesis de la familia Alvareda},
year = {1901},
publisher = {\\, [S.a. 19--]},
url = {https://idus.us.es/items/d2a3ad3c-36b8-4f07-9ccb-b41872f9c762}
}
The source metadata has no journal, volume or pages. Add them from the original publication if your citation needs them.