Asenov, A.,
Pencheva, V., &
Beloev, I.
().
A comparative research of alternative means of the goods transportation in small batches in the modern city. // <I>Ttransport problems' 2015<D> : Scientific conference "Ttransport problems" 2015, Katowice, Polska, 2015 : Proc. - Katowice : Silesian University of Technologi, 2015, p. 19-24..