Documentation and Publications

Reshuffled and filled up documentation + publications. Also internal documentation. see here

• Order: from public to private.
• Disadvantage: Stakeholder list ("most private") is on bottom.

Some more publications have been put in HIFIS report, p13. @frust45 : add these as well?

• Birds of a Feather session on Software Engineering...
• Guidelines and Environment to Support Sustainable Software Development at DLR

Closes #36 (closed)