@Book{Feng2021,
author  = "Feng, Yu",
title   = "Extraction of flood and precipitation observations from opportunistic volunteered geographic information",
year    = "2021",
address = "München",
series  = "DGK: C (Dissertationen)",
volume  = "Heft Nr. 882",
url     = "https://publikationen.badw.de/de/047646897",
}