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_Administrace Otázky spojené s Wolfdog.org, databází a další technické záležitosti... |
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#18 |
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I think no fixed boundaries - just to see the differences among following half-decades. Or, always 5-year groups but with the first and last year overlapping with previous/next groups.
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Saschia (Sasa Zahradnikova) http://www.chiens-loup-tchecoslovaqu...ei-et-damon.ws |
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