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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 Letters. 85 (11): 2284–2287. Bibcode:2000PhRvL..85.2284G. doi:10.1103/PhysRevLett.85.2284. PMID10977992.
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 Physics. 17 (17): L605–L610. Bibcode:1984JPhB...17L.605G. doi:10.1088/0022-3700/17/17/010.
Bae, Y. K.; Coggiola, M. J.; Peterson, J. R. (27 February 1984). "Observation of the Molecular Helium Negative Ion He2−". Physical Review Letters. 52 (9): 747–750. Bibcode:1984PhRvL..52..747B. doi:10.1103/PhysRevLett.52.747.
Kristensen, Martin; Keiding, Søren R.; van der Zande, Wim J. (December 1989). "Lifetime determination of the long-lived B 1Πg state in He2* by photofragment spectroscopy". Chemical Physics Letters. 164 (6): 600–604. Bibcode:1989CPL...164..600K. doi:10.1016/0009-2614(89)85266-2.
Hazell, I.; Norregaard, A.; Bjerre, N. (July 1995). "Highly Excited Rotational and Vibrational Levels of the Lowest Triplet States of He2: Level Positions and Fine Structure". Journal of Molecular Spectroscopy. 172 (1): 135–152. Bibcode:1995JMoSp.172..135H. doi:10.1006/jmsp.1995.1162.
Panock, R.; Freeman, R.R.; Storz, R.H.; Miller, Terry A. (September 1980). "Observation of laser driven transitions to high rydberg states of He2". Chemical Physics Letters. 74 (2): 203–206. Bibcode:1980CPL....74..203P. doi:10.1016/0009-2614(80)85142-6.
Bonifaci, Nelly; Li, Zhiling; Eloranta, Jussi; Fiedler, Steven L. (4 November 2016). "Interaction of Helium Rydberg State Molecules with Dense Helium". The Journal of Physical Chemistry A. 120 (45): 9019–9027. Bibcode:2016JPCA..120.9019B. doi:10.1021/acs.jpca.6b08412. PMID27783517.
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 Letters. 85 (11): 2284–2287. Bibcode:2000PhRvL..85.2284G. doi:10.1103/PhysRevLett.85.2284. PMID10977992.
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 Journal. 15 (8): 1985–1990. doi:10.1002/chem.200801399. PMID19021178.
Havermeier, T.; Jahnke, T.; Kreidi, K.; Wallauer, R.; Voss, S.; Schöffler, M.; Schössler, S.; Foucar, L.; Neumann, N.; Titze, J.; Sann, H.; Kühnel, M.; Voigtsberger, J.; Malakzadeh, A.; Sisourat, N.; Schöllkopf, W.; Schmidt-Böcking, H.; Grisenti, R. E.; Dörner, R. (April 2010). "Single Photon Double Ionization of the Helium Dimer". Physical Review Letters. 104 (15): 153401. arXiv:1006.2667. Bibcode:2010PhRvL.104o3401H. doi:10.1103/PhysRevLett.104.153401. PMID20481987. S2CID13319551.
Cai, Huamin; Stearns, Stanley D. (April 2013). "Pulsed discharge helium ionization detector with multiple combined bias/collecting electrodes for gas chromatography". Journal of Chromatography A. 1284: 163–173. doi:10.1016/j.chroma.2013.01.100. PMID23484651.
Bonifaci, Nelly; Li, Zhiling; Eloranta, Jussi; Fiedler, Steven L. (4 November 2016). "Interaction of Helium Rydberg State Molecules with Dense Helium". The Journal of Physical Chemistry A. 120 (45): 9019–9027. Bibcode:2016JPCA..120.9019B. doi:10.1021/acs.jpca.6b08412. PMID27783517.
Kunitski, Maksim; Zeller, Stefan; Voigtsberger, Jörg; Kalinin, Anton; Schmidt, Lothar Ph. H.; Schöffler, Markus; Czasch, Achim; Schöllkopf, Wieland; Grisenti, Robert E.; Jahnke, Till; Blume, Dörte; Dörner, Reinhard (May 2015). "Observation of the Efimov state of the helium trimer". Science. 348 (6234): 551–555. arXiv:1512.02036. Bibcode:2015Sci...348..551K. doi:10.1126/science.aaa5601. PMID25931554. S2CID206635093.
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 Journal. 13 (29): 8256–8270. doi:10.1002/chem.200700467. PMID17639524.