Assigning the Stereochemistry of Pairs of Diastereoisomers Using GIAO NMR Shift Calculation
S. G. Smith and J. M. Goodman J. Org. Chem. 2009, 74, 4597-4607.
DOI: 10.1021/jo900408d

Other resources:
PyDP4v0.4.zip

CHESHIRE, the Chemical Shift Repository for Computed NMR Scaling Factors (Tantillo Group)