@Article{npg-14-503-2007,
AUTHOR = {San Jos\'e Mart\'{\i}nez, F. and Caniego, F. J. and Garc\'{\i}a-Guti\'errez, C. and Espejo, R.},
TITLE = {Representative elementary area for multifractal analysis of soil porosity using entropy dimension},
JOURNAL = {Nonlinear Processes  in Geophysics},
VOLUME = {14},
YEAR = {2007},
NUMBER = {4},
PAGES = {503--511},
URL = {http://www.nonlin-processes-geophys.net/14/503/2007/},
DOI = {10.5194/npg-14-503-2007}
}