Helium

1: Greenwood,N.N., Earnshaw,A. Chemistry of the elements
2nd edition (1997) Edited by Greenwood,N.N., Earnshaw,A. pp. 1-1340, Butterworth-Heinemann. Oxford. Great Britain

2: Merck. ChemDAT The Merck Chemical Database Ver. 1.1.5

3: CRC Handbook of Chemistry and Physics
75th edition (1994) Edited by Lide,D.R. , CRC Press Inc. Boca Raton, USA

4: The Merck Index
12^th edition (1996) Edited by Budavari,S., Merck Research Laboratories, USA

5: Carfora,A., Petrella,R., Ambrosio,G., Mascolo,P., Liguori,B., Juhnke,C., Campobasso,C.P., Keller,T. Helium Suicide, a Rapid and Painless Asphyxia: Toxicological Findings
Toxics (2022) 10(8) 424

6: Spaggiari.S., Kepp,O., Rello-Varona,S., Chaba,K., Adjemian,S., Pype,J., Galluzzi,L., Lemaire,M., Kroemer,G. Antiapoptotic activity of argon and xenon
Cell Cycle. (2013) 12 pp 2636-2642

7: Thom,S.R., Marquis,R.E. Microbial growth modification by compressed gases and hydrostatic pressure
Appl. Environ. Microbiol. (1984) 47 pp 780-787

8: Harris,P.D., Barnes,R. The uses of helium and xenon in current clinical practice
Anaesthesia (2008) 63 pp 284–293

9: Live Chart of Nucleotides
Nuclear Data Service. https://www-nds.iaea.org