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

Author:
Professor Lena Torell, Chalmers University of Technology / Gothenburg University, Sweden

Illustrator:
Karin Feltzin, Stockholm

Printed by:
Tryckindustri 1998.

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.