@article{sornette:1998:mpp,
     title = {Multiplicative processes and power laws},
    author = {Sornette, Didier},
   journal = {Phys. Rev. E},
    volume = {57},
    number = {4},
     pages = {4811–4813},
      year = {1998},
       doi = {10.1103/PhysRevE.57.4811},
 publisher = {American Physical Society}}