In a label I was trying to add a reference to The Acts of Paul and Thecla. I gave up. Factbook gave me Acts of Paul, Acts of Paul and Thecla, Acts of Thecla. Only Acts of Paul was accepted as input to the label. As for whether that means only Acts of Paul or Acts of Paul and Thecla I don't know. I ended up annoyed and with a note on the label that I don't trust it's accuracy ..It should be an adventure to try to reference common pseudepigraphia.