@Book{Mai2013, author = "Mai, Enrico", title = "Time, atomic clocks, and relativistic geodesy", year = "2013", address = "München", series = "DGK: A (Theoretische Geodäsie)", volume = "Reihe A, Theoretische Geodäsie ; 124", url = "https://publikationen.badw.de/de/023386397", }