@article{Virchenko_Tolmacheva_2005, title={Majorant estimates for the percolation threshold of a Bernoulli field on a square lattice}, volume={57}, url={https://umj.imath.kiev.ua/index.php/umj/article/view/3687}, abstractNote={We suggest a method for obtaining a monotonically decreasing sequence of upper bounds of percolation threshold of the Bernoulli random field on $Z^2$. On the basis of this sequence, we obtain a method of
constructing approximations with the guaranteed exactness estimate for a percolation probability. We compute the first term $c_2 = 0,74683$ of the considered sequence.
<br><br>}, number={10}, journal={Ukrains’kyi Matematychnyi Zhurnal}, author={VirchenkoYu. P. and TolmachevaYu. A.}, year={2005}, month={Oct.}, pages={1315–1326} }