proj4.defs("EPSG:31266","+proj=tmerc +lat_0=0 +lon_0=18 +k=1 +x_0=6500000 +y_0=0 +ellps=bessel +towgs84=355.845,274.282,462.979,-9.086933,-6.491055,14.502181,20.888647 +units=m +no_defs +type=crs");