オスカー＝ハインリヒ・ベール
↑ Spick 1996, pp. 3–4.
↑ Spick 1996, p. 227.
↑ Morgan & Weal 1998, p. 88.
1 2 3 4 Kurowski 1996, p. 122.
↑ Schaulen 2003, p. 26.
↑ Toliver & Constable 1998, p. 360.
1 2 Kurowski 1996, pp. 103–105.
↑ Kurowski 1996, p. 73.
1 2 Toliver & Constable 1998, p. 358.
↑ Bergström & Mikhailov 2000, p. 86.
↑ Aders & Held 1993, pp. 29,30.
↑ Toliver & Constable 1998, p. 359.
↑ Aders & Held 1993, p. 47.
1 2 3 Spick 1996, p. 219.
↑ Aders & Held 1993, p. 68.
1 2 3 4 Berger 1999, p. 13.
↑ Bergström & Mikhailov 2000, p. 61.
↑ Aders & Held 1993, p.