@book{571813,
	author = {Beiglböck, W},
	title = {Group theorectical methods in physics : 7. International Colloquium and Integrative Conference on Group Theory and Mathematical Physics, held in Austin, Texas, September 11-16, 1978 /},
	publisher = {Springer,},
	year = {1979.},
	address = {Berlin :}
}