Abellán F.J., R. Indebetouw, J.M. Marcaide, M. Gabler, C. Fransson, J. Spyromilio, D.N. Burrows, R. Chevalier, P. Cigan, B.M. Gaensler, and H.L. Gomez, The Astrophysical Journal842, L24(2017).
Indebetouw R., M. Matsuura, E. Dwek, G. Zanardo, M.J. Barlow, M. Baes, P. Bouchet, D.N. Burrows, R. Chevalier, G.C. Clayton, and C. Fransson, The Astrophysical Journal782, L2(2014).