I'd like to create a named theorem and cite it in the header like this:
Theorem 5.3 [1, Theorem 1.1][NAME]
I haven't seen a book where an author used that style, but I'd like to use that kind of reference for my thesis. (Or is there a better way to do that?)
What I tried:
\documentclass[12pt]{scrartcl}
\usepackage{amsthm}
\usepackage{mathtools}
\usepackage{cite}
\newtheorem{theorem}{Theorem}[section]
\usepackage{filecontents}
\begin{filecontents*}{Literatur3.bib}
@book{GEOR,
Author = {Hans-Otto Georgii},
Publisher = {de Gruyter},
Title = {Stochastik},
Year = {2009}}
\end{filecontents*}
\bibliography{Literatur3.bib}
\begin{document}
\begin{theorem}[{\cite[6.30]{GEOR}}][Name]
...
\end{theorem}
\end{document}
but that produces an error "Argument of @citex has an extra }. \begin{Theorem}[\cite[6.30]"
Is there a right way to do this?
Thanks in advance!

\begin{Theorem}[{\cite[6.30]{bibitem}}](Name). See http://tex.stackexchange.com/questions/84595/latex-optional-arguments-with-square-brackets – Schweinebacke Jan 29 '17 at 12:03with multiple spaces after the dot and (Name) is printed in italics
– Nvi Jan 29 '17 at 12:13\citedepends on the style you are using for cites and bibliography (I hope, you are usingbiblatex). The style of the theorem depends on the theorem packages and definitions you are using. Please make a MWE. And describe in detail, what you want. We cannot help you without these things. – Schweinebacke Jan 29 '17 at 12:58amsthm. there's an example similar to what i think you want on p.4 of the documentation; take a look:texdoc amsthm'. (but i don't know whetherscrartclmakes and relevant modifications. i'm also not sure of the effect of thecite` package.) – barbara beeton Jan 29 '17 at 14:29