@misc{indiciae7e3827333c95,
  title = {Directed rigidity and bootstrap percolation in 1+1 dimensions.},
  author = {M A de Menezes and C F Moukarzel},
  year = {1999},
  doi = {10.1103/physreve.60.5699},
  url = {https://pubmed.ncbi.nlm.nih.gov/11970465/},
  note = {Source identifier: 11970465}
}