White Dwarfs formatIsbn:Softcover 9789401054232 Jon Weissman zwischen Reflektion und Handlungsempfehlungen Jon Weissman The management actions related to agriculture and water supply systems are presented in two different chapters but with a common conceptual framework based on the use of drought indicators for evaluating the levels of drought risk (pre alert The informal organization of the white dwarf community has been the starting point for large cooperative projects of which the Hubble Space Telescope "White Dwarf Consortium" and the "Whole Earth Telescope" are the most spectacular examples whose pioneering work has been the inspiration for many of the new ideas in the white dwarf community