Bielska, Anna. “Problems of Digitization of Analog Soil-Agricultural Maps on a Scale of 1: 5,000”. Acta Scientiarum Polonorum Administratio Locorum 11, no. 2 (May 29, 2019). Accessed May 19, 2024. https://czasopisma.uwm.edu.pl/index.php/aspal/article/view/4264.