Szukana fraza: [Bibliografia = %2213. Mann H.B.%2C 1945%2C Non%5C-parametric test against trend%2C Econometrica%2C 13%2C s. 245%E2%80%93259. https%5C:%5C%2F%5C%2Fdoi.org%5C%2F10.2307%5C%2F1907187%22]

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