"Jesus and the Presence and/or Future of Salvation" http://www.courses.drew.edu/sp2000/BIBST189.001/Eschatology.html
James Stuart Russell, The Parousia http://www.preteristarchive.com/Books/russell.html
Apocalyptic and Early Christianity gopher://ccat.sas.upenn.edu/00/journals/PSCO/psco07.min