When creating relations between two materials in the OSP Collection, you can use a material's numerical identifier in the relation field in place of its URL.

For instance, when creating a relation to Exoplanet Detection: Transit Method from another record, in the URL field you can just enter in the number 10156.

While the system should figure out the interrelations from the URL, using this shortcut ensures the linking occurs between records.

Let me know if you have any questions,
-Lyle

Journal article abstracts can be referenced using the article's doi using a comPADRE relation.  For example, a journal article with a doi of 10.1119/1.2870327 can be referenced by entering the following into the relations URL field and selecting "References" or "Is Referenced by"

http://dx.doi.org/10.1119/1.2870327

You probably shouldn't put the entire abstract in the relations's description box because this is the description of the relation and not the item.