Book reviews – Rezensionen - van der Heyden, Ulrich; Schneider, Helmut; Scholvin, Sören; Schiocchet, Leonardo; Ptackova, Jarmila; Exnerova, Vera; Schäfer, Susann; Hoffmann, Thomas; Eugster, Werner; Falk, Gregor C.; et al. (DIE ERDE – Journal of the Geographical Society of Berlin, 2015)