- Preliminary investigation into tensile characteristics of long flax fibre reinforced composite materialKers, Jaan; Peetsalu, Priidu; Saarna, Mart; Viikna, Anti; Krumme, Andres; Menind, AndresAgronomy research2010 / S1, p. 107-114 : ill https://agronomy.emu.ee/vol08Spec1/p08s113.pdf