The Spinless Relativistic Woods-Saxon Problem
  Motivated by the observation of a recent renewal of rather strong interest in the description of bound states by (semi-) relativistic equations of motion, we revisit, for the example of the Woods-Saxon interactions, the eigenvalue problem posed by the spinless Salpeter equation and recall various elementary knowledge, considerations, and techniques that practitioners seeking solutions to this specific reduction of the Bethe-Salpeter equation may find helpful. 
Wolfgang Lucha, Franz F. Schoberl
hep-ph math-ph math.MP nucl-th quant-ph