LEUSCHNER, Christoph - ELLENBERG, Heinz. Ecology of Central European non-forest vegetation : coastal to Alpine, natural to man-made habitats. revised and extended version of the 6th german edition. Cham : Springer - Verlag, 2017. xxxiv, 1093 s. Vegetation Ecology of Central Europe, Volume II. ISBN 978-3-319-43046-1.