Atanasov, A.,
Kangalov, P.,
Stoyanov, К., &
Angelov, I.
().
Some aspects in preparation of transport in large Bulgarian farms by using GPS and Google Earth. // <I>Engineering<D> for rural development : 9th intern. sci. conf., Jelgava, Latvia, 2010 : Proc. - Jelgava, 2010, p. 62-66..