Links
[1] https://handkeonline.onb.ac.at/node/1799
[2] http://www.uni-salzburg.at/portal/page?_pageid=2447%2C2091922&_dad=portal&_schema=PORTAL
[3] https://handkeonline.onb.ac.at/node/1290
[4] http://data.onb.ac.at/rec/AL00143079
[5] https://handkeonline.onb.ac.at/node/1292
[6] https://handkeonline.onb.ac.at/node/1294
[7] http://data.onb.ac.at/rec/AC01388012