Truebel H, Wuester S, Boehme P, Doll H, Schmiedl S, Szymanski J, etal. (May 2019). "A proof-of-concept trial of HELIOX with different fractions of helium in a human study modeling upper airway obstruction". European Journal of Applied Physiology. 119 (5): 1253–1260. doi:10.1007/s00421-019-04116-7. PMID30850876. S2CID71715570.
Lee DW, Jung SJ, Ju JS (First Quarter 2020). "The effects of heliox non-saturation diving on the cardiovascular system and cognitive functions". Undersea & Hyperbaric Medicine. 47 (1): 93–100. doi:10.22462/01.03.2020.10. PMID32176950.
Truebel H, Wuester S, Boehme P, Doll H, Schmiedl S, Szymanski J, etal. (May 2019). "A proof-of-concept trial of HELIOX with different fractions of helium in a human study modeling upper airway obstruction". European Journal of Applied Physiology. 119 (5): 1253–1260. doi:10.1007/s00421-019-04116-7. PMID30850876. S2CID71715570.
Lee DW, Jung SJ, Ju JS (First Quarter 2020). "The effects of heliox non-saturation diving on the cardiovascular system and cognitive functions". Undersea & Hyperbaric Medicine. 47 (1): 93–100. doi:10.22462/01.03.2020.10. PMID32176950.
Truebel H, Wuester S, Boehme P, Doll H, Schmiedl S, Szymanski J, etal. (May 2019). "A proof-of-concept trial of HELIOX with different fractions of helium in a human study modeling upper airway obstruction". European Journal of Applied Physiology. 119 (5): 1253–1260. doi:10.1007/s00421-019-04116-7. PMID30850876. S2CID71715570.