@article{pire_semenov-tian-shansky_szymanowski_2011, 
  title={πNtransition distribution amplitudes: Their symmetries and constraints from chiral dynamics}, 
  volume={84}, 
  DOI={10.1103/physrevd.84.074014}, 
  publisher={American Physical Society (APS)}, 
  author={Pire and Semenov-Tian-Shansky and Szymanowski}, 
  year={2011}, 
  month={Oct}
  }