@incollection {haussecker2000a,
	title = {Radiation and illumination},
	year = {2000},
	pages = {11--52},
	publisher = {Academic Press},
	chapter = {2},
	author = {Horst Hau{\ss}ecker and Bernd J{\"a}hne},
	editor = {Hau\DFecker, H.}
}
