Steven Olsen-Smith, The Inscription of Walt Whitman's "Live Oak, with Moss" Sequence: A Restorative Edition
It's a real digital critical edition, or better a TEI transcription of primary source as of http://www.tei-c.org/release/doc/tei-p5-doc/en/html/PH.html, of some handwritten pages of W. Whitman, with authorial variants.
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