@article{JRC31611,
	address = {UK},
	year = {2005},
	author = {Groebner J and Sperfeld P},
	abstract = {see attached
		},
	title = {Direct Traceability of the Portable QASUME Irradiance Scale to the Primary Irradiance Standard of the PTB.},
	type = {},
	url = {},
	volume = {42},
	number = {no},
	journal = {METROLOGIA},
	pages = {134-139},
	issn = {},
	publisher = {IOP PUBLISHING LTD},
	doi = {10.1088/0026-1394/42/2/008}
}