อ้างอิง ของ ซิกูเรอร์ จอนส์สัน (นักสกีอัลไพน์)

  1. ↑ "Sá besti fékk aðeins að keppa sem gestur". Alþýðublaðið (in Icelandic). 2 April 1975. p. 9. สืบค้นเมื่อ 20 March 2018.CS1 maint: unrecognized language (link)
  2. ↑ "Sigurður H. Jónsson farinn að keppa aftur og sigraði með miklum yfirburðum á Húsavík". Morgunblaðið (in ไอซ์แลนด์). 2 February 1982. p. 22. สืบค้นเมื่อ 20 March 2018.
  3. ↑ "Sigurður Jónsson Olympic Results". Sports-Reference.com. Sports Reference LLC. สืบค้นเมื่อ 18 March 2018.
  4. ↑ "Sigurður Hjálmar Jónsson". Morgunblaðið (in Icelandic). 21 May 1996. สืบค้นเมื่อ 20 March 2018.CS1 maint: unrecognized language (link)
  5. ↑ "Yfirburðir Sigurðar í svigi". Dagblaðið (in Icelandic). 8 April 1980. สืบค้นเมื่อ 20 March 2018.CS1 maint: unrecognized language (link)