1. HELA, R.; ZACH, J.; BODNÁROVÁ, L. Rehabilitation of anti-noise walls with wood- cement sound-absorbing boards. In 14 CCIA 2008. 1. Havana, Kuba, CUJAE. 2008. p. 26 - 29. ISBN 978-959-261-281-5.
2. ZACH, J. The utilization of waste raw materials for development of thermal insulating building materials. Structures and Techniques, 8th International Conference. Vilnius, Lithuania, Vilnius, Lithuania. 2004. p. 77 - 78. ISBN 9986-05-722-1.
3. ZACH, J. POSSIBILITIES OF INSULATING MATERIALS PRODUCTION FROM ORGANIC ROWS AND WASTES. In ICAMS 2008. Rumunsko, ICAMS 2008. 2008. p. 105 - 109. ISBN 978-973-8955-41-7.
4. ZACH, J.; SEDLÁŘOVÁ, I. Utilization of hemp waste from technical hemp fabrication for masonry bricks production. Recycling 2008, Brno. 2008. p. 133 - 138. ISBN 978-80-214- 3576-6.
5. EN 1793-1 Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of sound absorption