Digitale Geländemodelle von Spanien (Digital Terrain Models of Spain) - Open Data Portal Austria

From Google's English:

"These digital elevation models (here digital terrain models DGM - in contrast to digital surface models DOM) mostly use terrain models generated by precise LiDAR technology as data basis. These were measured by Airborne Laserscan (ALS) flights . Therefore, the big advantage of these models: The deviations of the terrain heights in these models compared to the laser heights of the source data, especially in hilly and hilly terrain, are significantly lower than those of the popular SRTM tiles. Map comparisons: maps based on LiDAR-DGM."