Feiglstorfer, H. & Ottner, F. (2022). The Impact of Clay Minerals on the Building Technology of Vernacular Earthen Architecture in Eastern Austria. Heritage 2022, 5, 378–401. https://doi.org/10.3390/heritage5010022
Webpage of NETZWERK LEHM ‐ Fachverband zur Förderung des Lehmbaus sowie zur Vernetzung von Lehmbauschaffenden in Österreich (in German): https://netzwerklehm.at/
Akbulut, D.E.A. & Alibeyoglu, R.N. (2025). Rammed Earth Construction: From Tradition to a Sustainable Future. Civil Engineering. IntechOpen. http://dx.doi.org/10.5772/intechopen.1010217.
Giuffrida, G., Caponetto, R. & Cuomo, M. (2019). An overview on contemporary rammed earth buildings: technological advances in production, construction and material characterization. IOP Conf. Series: Earth and Environmental Science 296, 012018. https://iopscience.iop.org/article/10.1088/1755-1315/296/1/012018/pdf
I would number the lessons, as well. As a learner if I see that I have 23 lessons to complete I want to see my progress, so 1.2.1, 1.2.2, etc.