Author	W. Harter H. Layer F. Petersen
Year of Publication	1979
Date Published	Jan-01-1979
Journal Title	Optics Letters
Volume	4
Start Page or Article ID (correct)	90
ISSN Number	0146-9592
DOI	10.1364/OL.4.000090
URL	http://www.opticsinfobase.org/abstract.cfm?URI=ol-4-3-90
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	Journal Article
Publication Status	Published