Water-, oil-, and soil-repellent treatment of textiles, artificial leather, and leather
M. Turk, A. Ehrmann, B. Mahltig, Journal of the Textile Institute 106 (2015) 611–620.

Necessary modification of the Euler-Eytelwein formula for knitting machines
M.O. Weber, A. Ehrmann, Journal of the Textile Institute 103 (2012) 687–690.