@conference {spencer2016stacking,
	title = {Stacking the Dark-sky Calibration Observations of the Herschel/SPIRE IFTS: searching for lines in all the wrong places},
	booktitle = {Optics for Solar Energy},
	year = {2016},
	pages = {JW4A{\textendash}21},
	publisher = {Optical Society of America},
	organization = {Optical Society of America},
	author = {Spencer, Locke D and Ivan Valtchanov and Hopwood, Rosalind and Edward Polehampton and Fulton, Trevor R and Scott, Jeremy and Benson, Chris S}
}