Ciekły hel (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ciekły hel" in Polish language version.

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DieterD. Vollhart DieterD., PeterP. Wölfle PeterP., The Superfluid Phases of Helium 3, wyd. 2, Courier Corporation, 2013, s. 7, ISBN 978-0-486-48631-4 [dostęp 2021-01-03] (ang.).

D.O.D.O. Edwards D.O.D.O. i inni, Solubility of He³ in Liquid He⁴ at 0°K, „Physical Review Letters”, 15 (20), 1965, s. 773–775, DOI: 10.1103/PhysRevLett.15.773 (ang.).
PeterP. Häussinger PeterP. i inni, Noble Gases, [w:] Ullmann’s Encyclopedia of Industrial Chemistry, Weinheim: Wiley‐VCH, 2005, s. 4, DOI: 10.1002/14356007.a17_485 (ang.).