Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Sand and gravel extraction JPG file - 158.78 kB - 1 241 x 1 754 pixels added on 2015-11-23565 viewsFrom reference Van Lancker, V. et al. (2015). Sand and gravel extraction... This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License Click here to return to the thumbnails overview