Journal article published in 2015 by M.~E Summers, R. Gladstone, A. Stern, K. Ennico Smith, T. Greathouse, D.~P Hinson, J. Kammer, I. Linscott, C. Olkin , A.~H Parker, J.~W Parker, K.~D Retherford, E. Schindhelm, K.~N Singer, A. Steffl and other authors. M.~E Summers, R. Gladstone, A. Stern, K. Ennico Smith, T. Greathouse, D.~P Hinson, J. Kammer, I. Linscott, C. Olkin , A.~H Parker, J.~W Parker, K.~D Retherford, E. Schindhelm, K.~N Singer, A. Steffl, D.~F Strobel, C. Tsang, G.~L Tyler, M.~H Versteeg, Jr. H.~A Weaver, M.~L Wong, W.~W Woods, Y.~L Yung, L.~A Young, C.~M Lisse, P. Lavvas, J. Renaud, M. Ewell, A.~D Jacobs

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