Szukana fraza: [Bibliografia = "38. Foltz R.B., Burroughs E.R., 1990, Sediment Production from Forest Roads with Wheel Ruts, \[w\:\] Watershed Planning and Analysis in Action Symposium, Proceedings of IR Conference Watershed Mgt\/IR Div\/ASCE Durango, CO, 9–11.06.1990, s. 266–275."]

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