@article{article5598348c,
title   = {Zipf's law organizes a psychiatric ward},
author = {Piqueira, José Roberto Castilho and Monteiro, Luiz Henrique Alves and Magalhães, Thaís Maria Coutinho and Ramos, Renato Teodoro and Sassi, Roberto Britto and Cruz, Eliane Genciano},
year = {1999},
doi = {10.1006/jtbi.1999.0923},
journal   = {Journal of Theoretical Biology}
}