Perhaps you should try some spelling variations:
"a tomography data paper iv/2011" » "a tomographic data paper iv/2011", "a tomography ct paper iv/2011", "a tomography ert paper iv/2011", "ray tomography data paper iv/2011", "sar tomography data paper iv/2011", "1 topography data paper iv/2011", "a tomography data power iv/2011", "a tomography data pattern iv/2011", "a tomography data paper i/2011", "a tomography data paper ii/2011", "a tomography data paper iii/2011"
"_ topography data paper iv/2011" » "_ geography data paper iv/2011", "_ topography natural paper iv/2011", "_ topography data power iv/2011", "_ topography data pattern iv/2011", "_ topography data paper i/2011", "_ topography data paper ii/2011", "_ topography data paper iii/2011"

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