Pion Elastic Form Factor in a Rather Broad Range of Momentum Transfers   from Local-Duality QCD Sum Rule
  Revisiting, within QCD sum rules, the relevance of local duality for the pion elastic form factor gives rise to optimism. 
Irina Balakireva, Wolfgang Lucha, and Dmitri Melikhov
hep-ph hep-ex nucl-th