On Monday, 12 August 2013, Tom Morris wrote:
Is it intentional to restrict the definition to personal pseudonyms? That doesn't cover all uses of them For example, there are house pseudonyms used by publishing houses which are associated with a series and the publishing house contracts with writers to write effectively anonymously (although it's often known who they are).Another example of a relatively well known collective pseudonym is http://en.wikipedia.org/wiki/Nicolas_Bourbaki There's a whole category of them here: http://en.wikipedia.org/wiki/Category:Collective_pseudonyms
Cases like this - where the pseudonym is a (collective) entity in itself - would seem to be a good case for "member of" relationships - Henri Cartan [is a member of] Nicholas Bourbaki as John Lennon [is a member of] the Beatles.A free-text pseudonym for each of the Bourbaki authors would mean there's no easy way to connect them to that other element in future.