BIBLIOGRAPHIA IRANICA:
A Dictionary: Christian Sogdian, Syriac and English. Notice of a new book: Sims-Williams, Nicholas. 2016.
A Dictionary: Christian Sogdian, Syriac and English, Reichert Verlag. Follow the link for details. Looks very useful. Past posts involving Sogdian are
here,
here,
here,
here, and
here. And cross-file under
Turfan.