refrence rights for table?

OK, during execution of SP I receive:
no permission for references access to __some_table_name

OK, I know what it means and what can I do (issue grant references __some_table_name to __some_db_object) - however - how can I determien exactly to what DB object (table, SP, trigger) these reference should be granted...

I am now trying extract all relations, SP, trigger from RDB$ tables and generate those rights for all possible objects (can I loose something?), OK - what can be better approach..

i.e. I mean - does there exist some kind of tables as for example - as for relating dependencies

Thanks for any hint in advance



additionally - I found that:
'grant references on __some_table_name to public '
solves all problems regarding 'no permission for references access', however - I am a bit confused what risks can be involved using this? I feel that not so many, because other tables on whom no more rights are granted cannot be accessed directly by anyone, but access through joins is possible and it is what I am pursuing for...