kauffmann et al 2003, furman et al 2002, weissman et al 2003, kaufmann et al. 2016, kagermann et al. 2013, koopman et al 2010, hoffman et al 2012, hausmann et al 2007, kullmann et al 2015, klusmann et al. 2012, kieffer et al. 2004, krausmann et al. 2009, fellman et al. 2010, fahlman et al. 2013, kahneman et al. 1982, kettenmann et al. 2013, fellbaum et al. 2012, hoffmann et al. 2013, kietzmann et al. 2011, hoffman et al. 2013
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