Title:
Reports on Progress in Physics
Abbreviated Title:
Rep. Prog. Phys.
Publisher:
IOP Publishing
ISSN
(Print):
00344885
Publication date
(Print):
July
1968
Volume: 31
Issue: 2
Pages: 705-775
Article
DOI: 10.1088/0034-4885/31/2/305
SO-VID: c64fd126-490a-4226-bee2-acbc7db21bcc