Wittekind, Jurgen. "The Battelle Mass Deacidification Process: A New Method for Deacidifying Books and Archival Materials." Restaurator: International Journal for the Preservation of Library and Archival Material 15/4 (1994): 189-207.

Wittekind, Jurgen. "The Battelle Mass Deacidification Process: A New Method for Deacidifying Books and Archival Materials." Restaurator: International Journal for the Preservation of Library and Archival Material 15/4 (1994): 189-207.