Analysis of information sources in references of the Wikipedia article "Adolf Georg Olland" in English language version.
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: CS1 maint: archived copy as title (link)
Name Index to Jeremy Gaige's Chess Tournament Crosstables, An Electronic Edition, Anders Thulin, Malmö, 2004-09-01{{cite web}}
: CS1 maint: archived copy as title (link)
Name Index to Jeremy Gaige's Chess Tournament Crosstables, An Electronic Edition, Anders Thulin, Malmö, 2004-09-01