smarter datasources

the datasources table is a list of sources. our audience is scientists so these sources will be mostly scientific. this raises two questions:

1) do we really want to implement our own database of scientific sources? or is it maybe smarter to use existing databases like google scholar? in the latter case, it would be enough to store google scholar ids and/or links in the table

2) if we want to have our own database: do we really want to build our own tools for managing this database? or can we use existing, open-source tools like e.g. zotero? if yes, then we would probably have to adapt the scheme accordingly (e.g. datasource would have to allow all fields which a bib/ris file can have)