Improve links to paper
All links to the paper should be consistent,
there shouldn't be some to the preprint and some to the publisher.
Furthermore, we should indicate that it is open access if we link to the
publisher, otherwise non-academic people (without institutional access)
might not even bother clicking the link.
@@ -27,8 +27,8 @@ The documentation for BenchExec is available in the following files:
- [Tool integration](tool-integration.md) for developing tool-info modules
More on the background of BenchExec can also be found in our journal paper
-[Reliable Benchmarking: Requirements and Solutions](https://doi.org/10.1007/s10009-017-0469-y)
-and the respective [slides](https://www.sosy-lab.org/research/prs/Current_ReliableBenchmarking.pdf).
+[Reliable Benchmarking: Requirements and Solutions](https://doi.org/10.1007/s10009-017-0469-y) (open access)
+and the respective [overview slides](https://www.sosy-lab.org/research/prs/Current_ReliableBenchmarking.pdf).
Additional resources such as helper scripts can be found in the directory [contrib](../contrib),
for example [files for generating plots](../contrib/plots/README.md).
