@Article{ PASTOR_VESPIGNANI:6195-6205,

author = { ROMUALDO PASTOR SATORRAS and ALESSANDRO VESPIGNANI } ,

title = { CRITICAL BEHAVIOR AND CONSERVATION IN DIRECTED SANDPILES },

journal = { PHYSICAL REVIEW E },

year = { 2000 },

volume = { 62 },

issn = { 1539-3755 },

pages = { 6195-6205 },

doi = { http://link.aps.org/doi/10.1103/PhysRevE.62.6195 },

}