Author	W. Chappell
Year of Publication	1968
Date Published	Jan-01-1968
Journal Title	Journal of Mathematical Physics
Volume	9
Start Page or Article ID (correct)	1921
ISSN Number	00222488
DOI	10.1063/1.1664526
URL	http://link.aip.org/link/?JMP/9/1921/1\&Agg=doi
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	Journal Article
Publication Status	Published