An alphabetized list of relevant papers and sources used throughout the project. Structure is as follows: 
  * Author(s) (Pub. year): Pub. title| pdf
    * Short description of contents within
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  * Boore and Joyner (1997): Site Amplifications for Generic Rock Sites: {{:groups:homestake:papers:boore_and_joyner_1997_site_amplifications.pdf|pdf}}
    * Contains motivation for use of power law representing shear-wave velocity models
  * Caddey, et. al (1991):The Homestake gold mine, an early Proterozoic iron-formation-hosted gold deposit, Lawrence County, South DakotaL: {{:groups:homestake:papers:homestake_geology_and_geochemical_data.pdf|pdf}}
    * Geochemical data for different levels within Homestake
  * Coughlin, et al (2014); Wiener filtering in a seismic underground array at the Sanford Underground Research Facility:  {{:groups:homestake:papers:wiener_20140515.pdf|pdf}}
    * Present method of Wiener filtering at the SURF. They achieve about an order of magnitude noise cancellation in the 0.05-1 Hz band. Also, it is shown that optimizing filter order can significantly improve subtraction of seismic noise.
  * Driggers, Harms, and Adhikari (2012): Subtraction of Newtonian Noise using optimized sensor arrays:{{:groups:homestake:papers:driggers_physrevd.86.102001.pdf|pdf}}
    * Implement schemes to mitigate Newtonian Noise and investigated the effects of array configurations on Newtonian Noise subtraction
  * Haney and Tsai (2015): Nonperturbational surface-wave inversion: A Dix-type relation for surface waves: {{:groups:homestake:papers:haneytsai_geophys2015.pdf|pdf}}
    * Parameter estimation for surface waves assuming a shear-wave velocity model
  * Harms, et al (2010): Characterization of the seismic environment at the Sanford Underground Laboratory, South Dakota: {{:groups:homestake:papers:characterization_of_the_seismic_environment_at_the_sanford.pdf|pdf}}
    *  Seismic spectra at three different depths are compared, establishing the 4100-ft level as a world-class low seismic-noise environment.
  * Roggenthen and Koch (2013): Geophysical Logging of DUSEL Core and Geotechnical Applications: {{:groups:homestake:papers:arma2013paper493.pdf|pdf}}
    * Paper with extensive seismic velocity data based on core data. 
  * Saulson (1984): Terrestrial gravitational noise on a gravitational wave antenna: {{:groups:homestake:papers:saulson_prd30_732_1984.pdf|pdf}}
    * An introduction to the idea of Newtonian Noise and its effects on gravitational wave detectors
  * Tsai (2010): The relationship between noise correlation and the Green’s function in the presence of degeneracy and the absence of equipartition: {{:groups:homestake:papers:tsai_gji2010.pdf|pdf}}
    * The title says it all--seems especially relevant for the work done by Victor and Daniel at Caltech
  * Tsai and Atiganyanun (2014): Green’s Functions for Surface Waves in a Generic Velocity Structure: {{:groups:homestake:papers:tsaiatiganyanun_bssa2014.pdf|pdf}} 
    * Information regarding the surface wave eigenfunction calculation--assumes a shear-wave velocity model (cf. Boore & Joyner 1997) and density model.