It appears that Professor Schenk himself has contributed to this article and his username contains his full initials EJJ  WPCOI notwithstanding at least the source is accurate  I am currently part of the WikiProject on Unreferenced Biographies of Living Persons and am working on proper citations and sources for this article  The original editor appears to be inactive but the later sections and edits by Prof Schenk have some cut  paste earmarks from his University bio pages specifically the Schematic view headline and section content