マックス＝ヘルムート・オステルマン
↑ Spick 1996, pp. 3–4.
1 2 Obermaier 1989, p. 31.
1 2 3 4 5 Berger 1999, p. 260.
↑ Williamson 2006, p. 10.
↑ Bergström 2008, p. 7.
↑ Bergström 2008, pp. 8–9.
↑ Bergström 2008, p. 9.
↑ Bergström 2008, p. 11.
↑ Bergström 2008, p. 15.
1 2 Bergström 2008, p. 13.
↑ Bergström 2008, p. 17.
↑ Bergström 2008, p. 19.
1 2 3 Weal 2001, p. 39.
↑ Bergström 2008, p. 20.
↑ Bergström and Mikhailov 2000, p. 53.
↑ Bergström and Mikhailov 2000, p. 57.
↑ Bergström and Mikhailov 2000, p. 78.
↑ Bergström and Mikhailov 2000, p. 79.