Acknowledgements
We should like to thank our friends and colleagues who commented on parts of the manuscript or helped us in other ways: Ben Lewis, Michael Perraudin and Robert Stern.
Among the scholars we invited to contribute a chapter was Volker Caysa, a great Bloch expert and good friend. Tragically, he died well before our volume could be completed – and much too early – at the age of 60. We dedicate this book to his memory.