THE COLLECTED PAPERS OF
Albert
Einstein
VOLUME
4
THE SWISS
YEARS:
WRITINGS, 1912-1914
Martin
J.
Klein, A.
J.
Kox,
Jürgen Renn,
and
Robert
Schulmann
EDITORS
Silvio
Bergia,
Jozsef
Illy,
Michel
Janssen,
John D. Norton,
and
Tilman Sauer
CONTRIBUTING
EDITORS
Rita Fountain and Annette
Pringle
EDITORIAL ASSISTANTS
Princeton
University
Press
1995