Unity licenses for an organisation can be managed on a single account and can be distributed from there. This page serves to keep track of those licenses, as well as provide some guidance on how to manage them. Assets can be purchased (or claimed in case of free assets) in the Unity Asset Store.
If you need a license for a product purchased by your research group, ask the person that manages that Unity organisation about it. For MLN, this is Alex van den Berg.
When logged into your Unity account you can find these packages as follows:
This will find & list all the packages licensed under the account you logged in with, such that you can import them from there.