Add to the list of useful URLs here!

[SpaceshipCaptain]

Leave a comment if you have a useful URL that you want to contribute and as long as your URL is within reason I will be happy to add it to the reference list here!

[rcanand]

Arxiv - https://arxiv.org/search/?query=%s&searchtype=all

[SpaceshipCaptain]

Arxiv - https://arxiv.org/search/?query=%s&searchtype=all

Added, thanks!