@article {Kor-KPG-2002,
	title = {Kegelschnitte und {P}rojektive {G}eometrie},
	journal = {mathematik lehren},
	volume = {112},
	year = {2002},
	month = {jun},
	pages = {16{\textendash}20},
	publisher = {Friedrich Verlag},
	address = {Velber},
	keywords = {lehrer},
	author = {Kortenkamp, Ulrich}
}
