RT Article T1 The Existence of Q JF The gospel behind the gospels SP 19 OP 47 A1 Tuckett, Christopher M. 1948- LA English PB Brill YR 1995 UL https://www.ixtheo.de/Record/1588871053 SN 9004097376 K1 Logienquelle K1 Synoptische Frage K1 Zweiquellentheorie