SNL:10.2138/am-2016-5769
SNL:10.2138/am.2006.2094
SNL:10.2138/am.2008.2617
SNL:10.2138/am.2010.3398
SNL:10.2138/am.2012.3957
SNL:10.2138/am.2013.4089
SNL:10.2138/rmg.2015.80.12