Merge pull request #20 from bens/master

Add Wortmann and Duke paper
add link to code
Merge pull request #22 from seba--/master

add link to code
OAAM paper final

title also changed
Merge pull request #23 from ggreif/patch-1

OAAM paper final
Add two remaining Haskell Symposium papers.
Fix broken link.

Fixes #21.
Merge pull request #24 from 23Skidoo/patch-1

Add two remaining Haskell Symposium papers.
Merge pull request #25 from 23Skidoo/patch-3

Fix broken link.
Add a link to Andrew Keep's dissertation.
Merge pull request #26 from 23Skidoo/patch-1

Add a link to Andrew Keep's dissertation.
Merge pull request #1 from gasche/master

Merge back changes