An author may self-archive an author-created version of his/her article on his/her own website and or in his/her institutional repository. He/she may also deposit this version on his/her funder’s or funder’s designated repository at the funder’s request or as a result of a legal obligation, provided it is not made publicly available until 12 months after official publication.He/she may not use the publisher’s PDF version, which is posted on www.springerlink.com, for the purpose of self-archiving or deposit.