Intelligenzproblem und Schule. Stern, W. Teubner, Leipzig, 1911.
bibtex   
@book{Stern1911,
  author    = {Stern, William},
  title     = {{Intelligenzproblem und Schule}},
  year      = 1911,
  publisher = {Teubner},
  address   = {Leipzig},
}
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