@inbook{369861481099475c9c1d95ba1dc6162e,
title = "Weakly hyperbolic equations - a modern field in the theory of hyperbolic equations",
author = "Michael Dreher and Michael Reissig",
year = "1999",
doi = "10.1007/978-1-4613-3276-3_23",
language = "English",
isbn = "978-1-4613-3278-7",
volume = "2",
series = "International Society for Analysis, Applications and Computation",
pages = "303--318",
editor = "{Begehr }, {Heinrich G W} and Gilbert, {Robert P} and Wen, {Guo-Chun }",
booktitle = "Partial Differential and Integral Equations",
}