Study of the structure of the Hoyle state by refractive α-scatteringS.A. Goncharov, A.S. Demyanova, Yu.A. Gloukhov, A.N. Danilov, A.A. Ogloblin, T.L. Belyaeva, Yu.G. Sobolev, W. Trzaska, G.P. Tuyrin and S.V. KhlebnikovEPJ Web of Conferences, 66 (2014) 03034DOI: https://doi.org/10.1051/epjconf/20146603034