Is seems like there is a more recent update [0] to the topic than the linked-to page, but it is really technical and perhaps just a data update. [0]: http://ph

Is seems like there is a more recent update [0] to the topic than the linked-to page, but it is really technical and perhaps just a data update. [0]: http://phl.upr.edu/library/notes/barnard http://phl.upr.edu/library/notes/barnard