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Thanks for your update to Útila. Since it was your first edit, you couldn't have known this, but while it's good to delete dead links, please don't delete empty fields in any listing; just delete the content in them. In this case, you deleted the entire "url" field, which is bad because it messes up the format and also removes the location where a working url can be inserted.
Anyway, thanks again, happy editing, and carry on!
All the best,