In the course of researching and writing this work we always found friends and colleagues who supported us in finding the right resources and to gain under- standing of difficult passages. They were happy to challenge us and with special wit they challenged our interpretations. They generously offered their viewpoints as supporting vehicles for this work.
Professor Kenneth P. Kramer is a unique person who was always ready to lis- ten and to offer other views. His rich knowledge served as a special ray of light.
We deeply appreciate the assistance of our friend and colleague, Professor Olga Meerson for her willingness to share her wisdom and knowledge with us. She was always ready to share her ideas and understanding in the most compli- cated matters we faced.