MESSINGEROVÁ, Valéria - JANKOVSKÝ, Martin - HNILICA, Richard. General safety requirements for tractors used in forestry and agriculture. In Machinery safety: standards, risk assessment and innovative forms of education : book of abstracts [elektronický zdroj]. - Zvolen : Technical University in Zvolen, 2018. ISBN 978-80-228-3100-0, p. 25 [CD-ROM]. KEGA 008TU Z-4/2016.