-
Chen H.-Yu., Hsin P.-Sh., Koroteev P., J. High Energy Phys., 2013, no. 8, 076
-
Marshakov A., J. High Energy Phys., 2013, no. 7, 068
-
Aminov G., Mironov A., Morozov A., Zotov A., Phys. Lett. B, 726:4-5 (2013),
802–808 
-
A. Mironov, A. Morozov, B. Runov, Y. Zenkevich, A. Zotov, JHEP, 2013, no. 12,
34–11 