The words "Atica argentina" are part of the name of a journal:
Revista de la unione matematica argentina.
It is not the name of a person. It should be removed.
Thank you for your interest in Microsoft Academic Search!
We apologize for this inconsistency on our site, and have remove the journal "Atica Argentia" from our list of authors. You should see the changes online within the next 48 hours.
We hope you continue to explore and enjoy our site, and if you have any questions or need further assistance please do not hesitate to ask.
Microsoft Academic Search Team