Cubul Soma (Romanian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Cubul Soma" in Romanian language version.

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fam-bundgaard.dk

  • en Ole Poul Pedersen (februarie 2010). Thorleif Bundgaard, ed. „The birth of SOMA”. Accesat în . 
  • en Bundgaard, Thorleif. „Why are the pieces labelled as they are”. SOMA News. Accesat în . 
  • en Kustes, William (), „The complete "SOMAP" is found”, SOMA News, accesat în  .

guinnessworldrecords.com

ludost.net

bobson.ludost.net

  • en Martin Gardner (1961). The 2nd Scientific American Book of Mathematical Puzzles & Diversions. New York: Simon & Schuster. Reprinted in 1987 by University of Chicago Press, ISBN: 0-226-28253-8, p. 65 (online).