Wikipedia:Articles for deletion/Basic concepts of quantum mechanics (2nd nomination)
with Introduction to quantum mechanics.  They may be covering the same ground but there's no reason to delete either of them as the article titles are useful for navigation and it is our |editing policy to preserve the edit history
— User:Colonel, 09:59, 23 November 2011 (UTC)
Stance: merge
Cited policy: WP:PRESERVE (Wikipedia:Editing policy)