ギュンター・ラドゥシュ
1 2 3 4 Obermaier 1989, p. 63.
↑ Braatz 2005, pp. 28–51.
↑ Forsyth 2011, p. 25.
↑ Forsyth 2011, p. 58.
↑ Forsyth 2011, p. 33.
↑ Patzwall and Scherzer 2001, p. 364.
1 2 Scherzer 2007, p. 610.