ELF VLF Radio Wave Propagation formatIsbn:Softcover 9789401022675 the author shows how to 9783642434266 the author shows how to adapt existing notions and techniques such as abstraction and interchangeability to the soft constraint framework and it is demonstrated how soft constraints can be used in some application areas LOUISE 6 MYTH AS METASTRUCTURE OF THE FAIRYTALE REID This volume is based on lectures and discussions presented at a NATO Advanced Study Institute on ELF and VLF Radio Wave Propagation In recent years the active interest in the field has led to very rapid progress in the development of propagation theory as well as in the application of this theory to the solution of practical problems