RT Article T1 In search of smoking guns: what makes income inequality vary over time in different countries? JF American sociological review VO 64 IS 4 SP 585 OP 605 A1 Gustafsson, Björn A2 Johansson, Mats LA English YR 1999 UL https://krimdok.uni-tuebingen.de/Record/1639745114 K1 Einkommensungleichheit K1 Industriestaaten