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Schmid, Randolph E. (15. 6. 1988). „Identical snowflakes cause flurry”. The Boston Globe. Associated Press. Архивирано из оригинала 24. 6. 2011. г. Приступљено 27. 11. 2008. „But there the two crystals were, side by side, on a glass slide exposed in a cloud on a research flight over Wausau, Wis.”