TY - RPRT TI - Composition and variation of noise recorded at the Yellowknife Seismic Array, 1991-2007 AU - K.D. Koper AU - B. De Foy AU - H. Benz PY - 2009 DO - 10.1029/2009jb006307 UR - https://pubs.usgs.gov/publication/70037216 ID - 70037216 ER -