RT Article T1 Variable voting behavior on the Supreme Court: A preliminary analysis and research framework JF The Justice system journal VO 25 IS 1 SP 57 OP 74 A1 Collins, Paul M. LA English YR 2004 UL https://krimdok.uni-tuebingen.de/Record/1912740990 DO 10.1080/0098261X.2004.10767708