Pyka, K., 1994, GRASS - program GIS z sieci komputerowej, Archiwum Fotogrametrii, Kartografii i Teledetekcji 1, 15-1-15-5 @Article{1994ArFKT..1..15-1P, author = {Pyka, K.}, title = {{GRASS - program GIS z sieci komputerowej}}, journal = {Archives of Photogrammetry, Cartography and Remote Sensing}, year = {1994}, volume = {1}, number = {1}, pages = {15-1--15-5}, }