@book{mond05,
	author = {Enzo Mondello},
	year= 2015,
	title = {Portfolimanagement -- Theorie und Anwendungsbeispiele},
	publisher = {Springer Gabler},
	edition = {2},
	address = {Wiesbaden}
}
@online{chatgpt,
	author = {ChatGPT},
	url = {https://chat.openai.com/chat},
	date = {2023-02-23},
	year = 2023,
	title = {Prompt: 'Was ist Mathematik?'}
}
@online{masterdocument,
	author = {Pascal Brachet},
	title = {Texmaker (free cross-platform latex editor).},
	url = {https://www.xm1math.net/texmaker/doc.html#SECTION31},
	date = {2023-05-26},
	year = 2023
}
@online{apaciteCtan,
	author = {Erik Meijer},
	title = {CTAN: Paket apacite},
	url = {https://www.ctan.org/pkg/apacite},
	_url = {http://mirrors.ctan.org/biblio/bibtex/contrib/apacite/apacite.pdf},
	year = {2013},
	lastchecked = {2023-10-10}
}
@manual{UsingBibTeX,
	author = {{Unofficial LaTeX2e reference manual}},
	year = {2023},
	url = {https://latexref.xyz/Using-BibTeX.html},
	title = {Using BibTeX},
	lastchecked = {2023-10-10}
}
@online{biblatex-apa,
	url = {https://www.ctan.org/pkg/biblatex-apa},
	title = {biblatex-apa – BibLaTeX citation and reference style for APA},
	author = {Philip Kime},
	date = {2023-03-20}
}