Stawarz L., A. Szostek, C.C. Cheung, A. Siemiginowska, D. Kozieł-Wierzbowska, N. Werner, A. Simionescu, G.M. Madejski, M.C. Begelman, D.E. Harris, and M. Ostrowski, The Astrophysical Journal794, 164(2014).
Cara M., E.S. Perlman, Y. Uchiyama, C.C. Cheung, P.S. Coppi, M. Georganopoulos, D.M. Worrall, M. Birkinshaw, W. Sparks, H.L. Marshall, and L. Stawarz, The Astrophysical Journal773, 186(2013).
Ostorero L., R. Moderski, L. Stawarz, A. Diaferio, I. Kowalska, C.C. Cheung, J. Kataoka, M.C. Begelman, and S.J. Wagner, The Astrophysical Journal715, 1071-1093(2010).
Cara M., E.S. Perlman, Y. Uchiyama, S. Jester, M. Georganopoulos, C.C. Cheung, R.M. Sambruna, W. Sparks, A. Martel, C.P. O'Dea, and S.A. Baum, inAip(AIP, Fluno Center, Madison (Wisconsin), 2009), pp. 162-165.