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1928 Proc. Royal Soc. A. 120 52 Entirely undegassed elements.

1968 Jrnl. Appl. Physics 39 2998 Undegassed and degassed tungsten wires, initially coated with an impurity layer of tungsten oxide and graphite, have been exploded in a vacuum.

2015 B. J. Wood & A. Corgne in Treat. Geophysics (ed. 2) II. iv. 63/2 Geochemical arguments..suggest the presence in the deep mantle of undegassed reservoirs.