- 
								[1]
								A. Darbrowska, B. Wosiek, Acta Phys. B, 31: 725 (2000) 
- 
								[2]
								J. Hufner, J. Knoll, Nucl. Phys. A, 290: 460 (1977) 
- 
								[3]
								F. H. Liu et al, Nucl. Phys. B, (Proc. Suppl.) 175-176: 54 (2008) 
- 
								[4]
								A. El-Naghy et al, Tr. J. Phys., 23: 1051 (1999) 
- 
								[5]
								M. El-Nadi et al, J. Phys. G, Nucl. Part. Phys., 24: 2265 (1998) 
- 
								[6]
								C. R. Meng and D. Hai, Chinese J. Phys., 44: 1 (2006) 
- 
								[7]
								S. Fakhraddin and M. Rahim, Phys. Scr., 78: 015101 (2008) 
- 
								[8]
								M. I. Adamovich et al (EMU01 Collaboration), Phys. Rev. C, 40: 66 (1989) 
- 
								[9]
								M. A. Rahim et al, Eur. Phys. J. A, 48: 115 (2012) 
- 
								[10]
								M. El-Nadi et al, Nuovo Cim. A, 108: 935 (1995) and references therein 
- 
								[11]
								M. A. Jilany, Phys. Rev. C, 70: 014901 (2004) 
- 
								[12]
								M. A. Jilany, Eur. Phys. J. A, 22: 471 (2004) 
- 
								[13]
								W. Er-Qin, Chin. Phys. Lett., 28: 082501 (2011) 
- 
								[14]
								M. S. EI-Nagdy et al, Nucl. Phys. A, 730: 419 (2004) 
- 
								[15]
								M. El-Nadi et al, Nuovo Cim. A, 110: 1255 (1997) 
- 
								[16]
								M. El-Nadi et al, J. Phys. G: Nucl. Part. Phys., 28: 241 (2002) 
- 
								[17]
								J. R. Florian et al, Particles and Fields, 490 (1973) 
- 
								[18]
								M. I. Adamovich et al (EMU01 Collaboration), Lund University Report, Sweden: LUIP 8904 (1989) 
- 
								[19]
								S. Kamel, Nuovo Cim. A, 112: 733 (1999) 
- 
								[20]
								A. Abdelsalam et al, JKPS, 67: 1150 (2015); D. J. Mangeol, arXiv: 0110029 v1 [hep-ex] 2001 
- 
								[21]
								Xiaofeng Luo, Cent. Eur. J. Phys., 10: 1372 (2012); M. A. Stephanov, Phys. Rev. Lett., 102: 032301 (2009)