Editors:
Solgerd Björn-Rasmussen and Margareta Wiberg Roland, The Royal Swedish Academy of Sciences.

Authors:
Professor Erik B Karlsson and Professor Carl Nordling, Department of Physics, Uppsala University, Members of the Nobel Committee for Physics.

Layout and illustrations:
Kjell Lundin, Explicare AB

Printed by:
Tryckindustri 1994.

Copyright © The Royal Swedish Academy of Sciences, Information Department, Box 50005, S-104 05 Stockholm, Sweden, Tel. +46-8-673 95 00,
Fax +46-8-15 56 70, Email: info@kva.se.

Web Adapted Version:
Nobelprize.org

Every effort has been made by the publisher to credit organizations and individuals with regard to the supply of photographs and illustrations. The publishers apologize for any omissions which will be corrected in future editions.