Coxon, J.; Hajigeorgiou, P. G. (1999). “Experimental Born–Oppenheimer Potential for the X1Σ+ Ground State of HeH+: Comparison with the Ab Initio Potential”. Journal of Molecular Spectroscopy. 193 (2): 306–318. Bibcode:1999JMoSp.193..306C. doi:10.1006/jmsp.1998.7740. PMID9920707.
Coyne, John P.; Ball, David W. (2009). “Alpha particle chemistry. On the formation of stable complexes between He2+ and other simple species: implications for atmospheric and interstellar chemistry”. Journal of Molecular Modeling. 15 (1): 35–40. doi:10.1007/s00894-008-0371-3. PMID18936986.
Lias, S. G.; Liebman, J. F.; Levin, R. D. (1984). “Evaluated Gas Phase Basicities and Proton Affinities of Molecules; Heats of Formation of Protonated Molecules”. Journal of Physical and Chemical Reference Data. 13 (3): 695. Bibcode:1984JPCRD..13..695L. doi:10.1063/1.555719.
Grandinetti, Felice (tháng 10 năm 2004). “Helium chemistry: a survey of the role of the ionic species”. International Journal of Mass Spectrometry. 237 (2–3): 243–267. Bibcode:2004IJMSp.237..243G. doi:10.1016/j.ijms.2004.07.012.
Carrington, Alan; Gammie, David I.; Shaw, Andrew M.; Taylor, Susie M.; Hutson, Jeremy M. (1996). “Observation of a microwave spectrum of the long-range He⋯H+ 2 complex”. Chemical Physics Letters. 260 (3–4): 395–405. Bibcode:1996CPL...260..395C. doi:10.1016/0009-2614(96)00860-3.
Stutzki, Jürgen; Risacher, Christophe; Ricken, Oliver; Klein, Bernd; Karl Jacobs; Graf, Urs U.; Menten, Karl M.; Neufeld, David; Wiesemeyer, Helmut (tháng 4 năm 2019). “Astrophysical detection of the helium hydride ion HeH+”. Nature. 568 (7752): 357. doi:10.1038/s41586-019-1090-x. PMID30996316.
Liu, X.-W.; Barlow, M. J.; Dalgarno, A.; Tennyson, J.; Lim, T.; Swinyard, B. M.; Cernicharo, J.; Cox, P.; Baluteau, J.-P.; Pequignot, D.; Nguyen, Q. R.; Emery, R. J.; Clegg, P. E. (1997). “An ISO Long Wavelength Spectrometer detection of CH in NGC 7027 and an HeH+ upper limit”. Monthly Notices of the Royal Astronomical Society. 290 (4): L71–L75. Bibcode:1997MNRAS.290L..71L. doi:10.1093/mnras/290.4.l71.
Coxon, J.; Hajigeorgiou, P. G. (1999). “Experimental Born–Oppenheimer Potential for the X1Σ+ Ground State of HeH+: Comparison with the Ab Initio Potential”. Journal of Molecular Spectroscopy. 193 (2): 306–318. Bibcode:1999JMoSp.193..306C. doi:10.1006/jmsp.1998.7740. PMID9920707.
Lias, S. G.; Liebman, J. F.; Levin, R. D. (1984). “Evaluated Gas Phase Basicities and Proton Affinities of Molecules; Heats of Formation of Protonated Molecules”. Journal of Physical and Chemical Reference Data. 13 (3): 695. Bibcode:1984JPCRD..13..695L. doi:10.1063/1.555719.
Grandinetti, Felice (tháng 10 năm 2004). “Helium chemistry: a survey of the role of the ionic species”. International Journal of Mass Spectrometry. 237 (2–3): 243–267. Bibcode:2004IJMSp.237..243G. doi:10.1016/j.ijms.2004.07.012.
Carrington, Alan; Gammie, David I.; Shaw, Andrew M.; Taylor, Susie M.; Hutson, Jeremy M. (1996). “Observation of a microwave spectrum of the long-range He⋯H+ 2 complex”. Chemical Physics Letters. 260 (3–4): 395–405. Bibcode:1996CPL...260..395C. doi:10.1016/0009-2614(96)00860-3.
Liu, X.-W.; Barlow, M. J.; Dalgarno, A.; Tennyson, J.; Lim, T.; Swinyard, B. M.; Cernicharo, J.; Cox, P.; Baluteau, J.-P.; Pequignot, D.; Nguyen, Q. R.; Emery, R. J.; Clegg, P. E. (1997). “An ISO Long Wavelength Spectrometer detection of CH in NGC 7027 and an HeH+ upper limit”. Monthly Notices of the Royal Astronomical Society. 290 (4): L71–L75. Bibcode:1997MNRAS.290L..71L. doi:10.1093/mnras/290.4.l71.
Coxon, J.; Hajigeorgiou, P. G. (1999). “Experimental Born–Oppenheimer Potential for the X1Σ+ Ground State of HeH+: Comparison with the Ab Initio Potential”. Journal of Molecular Spectroscopy. 193 (2): 306–318. Bibcode:1999JMoSp.193..306C. doi:10.1006/jmsp.1998.7740. PMID9920707.
Coyne, John P.; Ball, David W. (2009). “Alpha particle chemistry. On the formation of stable complexes between He2+ and other simple species: implications for atmospheric and interstellar chemistry”. Journal of Molecular Modeling. 15 (1): 35–40. doi:10.1007/s00894-008-0371-3. PMID18936986.
Stutzki, Jürgen; Risacher, Christophe; Ricken, Oliver; Klein, Bernd; Karl Jacobs; Graf, Urs U.; Menten, Karl M.; Neufeld, David; Wiesemeyer, Helmut (tháng 4 năm 2019). “Astrophysical detection of the helium hydride ion HeH+”. Nature. 568 (7752): 357. doi:10.1038/s41586-019-1090-x. PMID30996316.