Papers on proton-proton interferometry (just for my record, list is not complete):

1. "Proton evaporation time scales from longitudinal and transverse two-proton correlation functions",
   M. Lisa et al., Phys. Rev. C 49 (1994) 2788
2. "Experimental proton-proton correlation function derived for the pp→ppη reaction",
   P. Klaja, P. Moskal and A. Deloff for the COSY-11 Collaboration, ArXiv:0709.4566v1 [hep-ph]
3. "Investigation of Proton-Proton Short_Range Correlations via the ¹²C(e,e'pp) Reaction"
   R. Shneor et al. [The Jefferson Lab Hall A Collaboration], Phys. Rev. Lett. 99 (2007) 072501, ArXiv:nucl-ex/0703023v2
4. "Correlation femtoscopy for studying η meson production mechanism",
   P. Klaja et al., [COSY-11 Collaboration], Acta Phys.Slov. 56 (2006) 251-259, ArXiv:nucl-ex/0603025v3
5. "Two-particle correlation functions at small relative momenta for ¹⁴N induced reactions on ¹⁹⁷Au at E/A=35 MeV."
   J. Pochodzalla et al., Phys. Lett. B 174 (1986) 36
6. "Space-time evolution of the reactions ¹⁴N+²⁷Al,¹⁹⁷Au at E/A=75 MeV and ¹²⁹Xe+²⁷Al,¹²²Sn at E/A=31 MeV probed by two-proton interferometry"
   W. G. Gong et al., Phys. Rev. C 43 (1991) 1804
7. "Proton Source Size Measurements in the eA→e'ppX Reaction",
   A. V. Stavinsky et al., Phys. Rev. Lett. 93 (2004) 192301