brown et al. 2008, brown et al. 2009, brown et al. 2005, brown et al. 2007, brown et al. 2006, brown et al. 2000, brown et al. 2004, brown et al. 2001, brown et al. 2002, brown et al. 2018, brown et al. 2003, brown et al. 2018 p. 15, brown et al. 2010, brown et al. 2010 igms, brown et al. 2010 settlement
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