Helen C. Kerbey(2011)Itacolumite, flexible sandstone and flexible quartzite – a review,Proceedings of the Geologists' Association,Volume 122, Issue 1,Pages 16-24,ISSN 0016-7878,https://doi.org/10.1016/j.pgeola.2010.09.006.
Doncieux, A., Stagnol, D., Huger, M. et al. Thermo-elastic behaviour of a natural quartzite: itacolumite. J Mater Sci 43, 4167–4174 (2008). https://doi.org/10.1007/s10853-007-2414-z
M. B. Dusseault; Itacolumites: the flexible sandstones. Quarterly Journal of Engineering Geology and Hydrogeology 1980;; 13 (2): 119–128. doi: https://doi.org/10.1144/GSL.QJEG.1980.013.02.06