@Article{ authors = " Ken Hamilton, Armin Schmidt", title = "Archaeological investigation of the Somme battle site by ground penetrating radar / Ken Hamilton and Armin Schmidt.", journal = "Archaeologia Polona", issue = "2003 / Tom 41", pages = "189" }

@Article{ authors = " Ken Hamilton, Armin Schmidt", title = "Integrated archaeological geophysical assessment of an urban brown field site in Benghazi, Libya / Ken Hamilton and Armin Schmidt.", journal = "Archaeologia Polona", issue = "2003 / Tom 41", pages = "188 - 189" }