อ้างอิง ของ ไลกา (สุนัข)

  1. ↑ "Russia opens monument to Laika, first dog in space". Associated Press, April 11, 2008. Retrieved on August 24, 2010.
  2. ↑ Malashenkov, D. C. (2002). "Abstract:Some Unknown Pages of the Living Organisms' First Orbital Flight". IAF abstracts. ADS: 288. Bibcode:2002iaf..confE.288M.
  3. ↑ Asif Siddiqi, Sputnik and the Soviet Space Challenge, 2000, p. 174
  4. ↑ Beischer, DE; Fregly, AR (1962). "Animals and man in space. A chronology and annotated bibliography through the year 1960". US Naval School of Aviation Medicine. ONR TR ACR-64 (AD0272581). สืบค้นเมื่อ 2011-06-14.CS1 maint: multiple names: authors list (link)

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