@misc{ayuntamiento2018number,
  title = {Number and square area of new buildings in Sevilla}
  author = {Ayuntamiento de Sevilla},
  url = {https://www.sevilla.org/servicios/servicio-de-estadistica/datos-estadisticos/anuarios/anuario-estadistico-de-la-ciudad-de-sevilla-2019},
  year = {2018}
}