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1
Visual symmetry
Julkaistu 2009An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
2
Hungarian problem book I based on the Eotvos Competitions, 1894-1905 /
Julkaistu 1963An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
3
Hungarian problem book III based on the Eotvos Competition, 1929-1943 /
Julkaistu 2001An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
4
Hungarian problem book II based on the Eotvos Competition, 1929-1943 /
Julkaistu 1963An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
5
Hungarian problem book IV
Julkaistu 2011An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
6
Fossils of the Carpathian region /
Julkaistu 2014An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
7
Visual symmetry
Julkaistu 2009An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
8
Hungarian problem book I based on the Eotvos Competitions, 1894-1905 /
Julkaistu 1963An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
9
Hungarian problem book III based on the Eotvos Competition, 1929-1943 /
Julkaistu 2001An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
10
Hungarian problem book II based on the Eotvos Competition, 1929-1943 /
Julkaistu 1963An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
11
Hungarian problem book IV
Julkaistu 2011An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja -
12
Fossils of the Carpathian region /
Julkaistu 2014An electronic book accessible through the World Wide Web; click to view
Elektroninen E-kirja