User:Jameskirk

Helpful infos:

de:User:Jameskirk
 * How to cite a source: Citing_sources
 * How to cite a web page: Template:Cite_web
 * How to mark citation needed: Citation_needed
 * Hot to link to other language: Help:Interlanguage_links
 * Use date calculation templates / functions: Category:Date_mathematics_templates
 * How to mark an outdated article: Template:Outdated_as_of