David S. Johnson: http://www.research.att.com/~dsj/
Co-author, with Michael R. Garey (http://cm.bell-labs.com/cm/ms/former/mrg/), of "Computers and Intractability". (See http://citeseer.ist.psu.edu/articles.html .)
Co-author, with Michael R. Garey (http://cm.bell-labs.com/cm/ms/former/mrg/), of "Computers and Intractability". (See http://citeseer.ist.psu.edu/articles.html .)
Who is "D. Johnson"?