CC BY-NC (hybrid) - with CC BY acc route

The Published version can be archived in:

• Author's Homepage
• Journal Website

...with one of the following licences: CC BY-NC 4.0

...with the following conditions: Published source must be acknowledged

A fee must be paid to the publisher.

The Accepted version can be archived in:

• Author's Homepage
• Funder Designated Location
• Institutional Repository

...with one of the following licences: CC BY 4.0

...with the following conditions:

• Published source must be acknowledged
• Must state that the file is not the final published version of the paper
• Must link to publisher version with DOI