Kristoufek, Ladislav; Janda, Karel; Zilberman, David - In: The European Physical Journal B - Condensed Matter and … 86 (2013) 2, pp. 1-12
In this paper, we analyze the relationships between biodiesel, ethanol and related fuels and agricultural commodities with a use of minimal spanning trees and hierarchical trees. To distinguish between short term and long term effects, we construct the trees for different frequencies (weekly,...