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R.~Brett, J.~Bulava, J.~Fallica, A.~Hanlon, B.~H{\"orz}, and C.~Morningstar,
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J.~Bulava, B.~Fahy, B.~H{\"orz}, K.~J. Juge, C.~Morningstar, and C.~H. Wong,
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D.~J. Wilson, R.~A. Briceno, J.~J. Dudek, R.~G. Edwards, and C.~E. Thomas,
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\bibitem{Morningstar:2017spu}
C.~Morningstar, J.~Bulava, B.~Singha, R.~Brett, J.~Fallica, A.~Hanlon, and
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J.~J. Dudek, R.~G. Edwards, and D.~J. Wilson, ``{An $a_0$ resonance in strongly
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