Incoming Resources
- A.R.G. Gantner, Distributed by Koeltz Scientific Books, Vaduz, Liechtenstein, Königstein, Germany, 1999
- A.R.G. Gantner, Distributed by Koeltz Scientific Books, Ruggell Liechtenstein, Königstein, Germany, 2005
- A.R.G. Gantner, Distributed by Koeltz Scientific, Vaduz, Liechtenstein, Königstein, Germany, 2000