P. Molina Gaudo, L. López, L. Jiménez, R. García, L. Beltrán, V. Ferrer, R. Bou, C. Bru : “ Intercompany innovation in digitalization and energy intelligence of elevators”. 2023 1^st International Elevator & Escalator Symposium (IEES’23), Barcelona, Spain, 2023.

There is a summary of this paper in Spanish that you can access here:

https://www.interempresas.net/ascensores-montacargas/Articulos/472515-Innovacion-interempresarial-en-digitalizacion-e-inteligencia-energetica-de-Ascensores.html