Articles Title   Panzerjager 1 Author   Buffetaut, Yves Publication   Militaria Magazine [English Edn.] Date   Jun.1994       Title   L'obusier de 150mm s.F.H. modele 18 Author   Lefevre, Eric Publication   ArmesMilitaria Date   Nov.1996       Title   Reconstructing a Medieval trebuchet Author   Vemming Hansen, Peter Publication   Miliary Illustrated past and present Date   Aug.1990       Title   The Chinese connection: bombs and guns from China Author   Turnbull, Stephen Publication   Military Illustrated past and present Date   Dec.1997       Title   Hungarian artillery 1939-45 Author   Gander, T Publication   Airfix magazine annual for military modellers Date   1978       Title   Roman Artillery (1) Author   Holder, Paul Publication   Military Illustrated past and present Date   Aug./Sept.1986       Title   Roman Artillery (2) Author   Holder, Paul Publication   Military Illustrated past and present Date   Dec-Jan.1987