chetty et al. 2014, chetty et al. 2011, chetty et al. 2016, chetty et al. 2017, chetty et al. 2020, chen et al. 2014, chen et al. 2004, chen et al. 2002, chen et al. 1998, chelton et al. 2011, chen et al. 2012, chen et al. 2010, chen et al. 2009, chen et al. 2013, chen et al. 2011, chenchik et al. 1998, cheung et al. 2012, chen et al. 2007, cheng et al. 2013, cheung et al. 2010, cheung et al. 2011, cheung et al. 2008
chetty et al. 2014. There are any references about chetty et al. 2014 in here. you can look below.
