Increase of driving pulls of the tractor by trailer / Jozef Semetko, Ivan Janoško, Peter Pernis, S. Kosutic. -- Bibliogr. odkazy. In: ASAE Annual International Meeting : Florida 12.-16. July 1998. -- St. Joseph : American Society of Agricultural Engineers, 1998. -- S. 59-64. poľnohospodárstvo * stroje * traktory * prívesy