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Cerpa, Erick; Krapp, Andreas; Flores-Moreno, Roberto; Donald, Kelling J.; Merino, Gabriel (9 February 2009). «Influence of Endohedral Confinement on the Electronic Interaction between He atoms: A He2@C20H20 Case Study». Chemistry: A European Journal15 (8): 1985–1990. doi:10.1002/chem.200801399. PMID19021178.
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Kolganova, Elena; Motovilov, Alexander; Sandhas, Werner (November 2004). «Scattering length of the helium-atom–helium-dimer collision». Physical Review A70 (5): 052711. doi:10.1103/PhysRevA.70.052711. Bibcode: 2004PhRvA..70e2711K.
Grisenti, R.; Schöllkopf, W.; Toennies, J.; Hegerfeldt, G.; Köhler, T.; Stoll, M. (September 2000). «Determination of the Bond Length and Binding Energy of the Helium Dimer by Diffraction from a Transmission Grating». Physical Review Letters85 (11): 2284–2287. doi:10.1103/PhysRevLett.85.2284. PMID10977992. Bibcode: 2000PhRvL..85.2284G.
Guilhaus, M.; Brenton, A. G.; Beynon, J. H.; Rabrenovic, M.; Schleyer, P. von Rague (14 September 1984). «First observation of He22+: charge stripping of He2+ using a double-focusing mass spectrometer». Journal of Physics B: Atomic and Molecular Physics17 (17): L605–L610. doi:10.1088/0022-3700/17/17/010. Bibcode: 1984JPhB...17L.605G.
Grisenti, R.; Schöllkopf, W.; Toennies, J.; Hegerfeldt, G.; Köhler, T.; Stoll, M. (September 2000). «Determination of the Bond Length and Binding Energy of the Helium Dimer by Diffraction from a Transmission Grating». Physical Review Letters85 (11): 2284–2287. doi:10.1103/PhysRevLett.85.2284. PMID10977992. Bibcode: 2000PhRvL..85.2284G.
Cerpa, Erick; Krapp, Andreas; Flores-Moreno, Roberto; Donald, Kelling J.; Merino, Gabriel (9 February 2009). «Influence of Endohedral Confinement on the Electronic Interaction between He atoms: A He2@C20H20 Case Study». Chemistry: A European Journal15 (8): 1985–1990. doi:10.1002/chem.200801399. PMID19021178.
Krapp, Andreas; Frenking, Gernot (5 October 2007). «Is This a Chemical Bond? A Theoretical Study of Ng2@C60 (Ng=He, Ne, Ar, Kr, Xe)». Chemistry: A European Journal13 (29): 8256–8270. doi:10.1002/chem.200700467. PMID17639524.
Havermeier, T.; Jahnke, T.; Kreidi, K.; Wallauer, R.; Voss, S.; Schöffler, M.; Schössler, S.; Foucar, L. και άλλοι. (April 2010). «Single Photon Double Ionization of the Helium Dimer». Physical Review Letters104 (15): 153401. doi:10.1103/PhysRevLett.104.153401. PMID20481987. Bibcode: 2010PhRvL.104o3401H.