M. Delamaro, M. Pezzè, and A. Vincenzi.
" Mutant Operators for Testing Concurrent Java Programs", in <em>Anais do XV Simpósio Brasileiro de Engenharia de Software</em>, Rio de Janeiro/RJ, 2001, pp. 272-285, doi: <a href="https://doi.org/10.5753/sbes.2001.23994">https://doi.org/10.5753/sbes.2001.23994</a>.