Encyclopædia Britannica, [3], pridobljeno 17. februarja 2011.
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H. Pinkerton, G. Norton: Rheological properties of basaltic lavas at sub-liquidus temperatures: laboratory and field measurements on lavas from Mount Etna, Journal of volcanology and geothermal research, 68 (1995), 4, str. 307-323. [2]Arhivirano 2015-11-02 na Wayback Machine.
N. Bagdassarov, H. Pinkerton: Transient phenomena in vesicular lava flows based on laboratory experiments with analogue materials. Journal of Volcanology and Geothermal Research, 132 (2004), 2-3, str. 115-136
[1]
H. Pinkerton, G. Norton: Rheological properties of basaltic lavas at sub-liquidus temperatures: laboratory and field measurements on lavas from Mount Etna, Journal of volcanology and geothermal research, 68 (1995), 4, str. 307-323. [2]Arhivirano 2015-11-02 na Wayback Machine.