@article{01873751, title = {A percolation formula.}, journal = {Electronic Communications in Probability [electronic only]}, volume = {6}, year = {2001}, pages = {115-120}, zbl = {1008.60100}, language = {en}, url = {http://dml.mathdoc.fr/item/01873751} }
Schramm, Oded. A percolation formula.. Electronic Communications in Probability [electronic only], Tome 6 (2001) pp. 115-120. http://gdmltest.u-ga.fr/item/01873751/