Mauro Luciano Baesso (State University of Maringá, Brazil)

Antonio Carlos Bento (State University of Maringá, Brazil) 

Sandro Márcio Lima (State University of Mato Grosso do Sul, Brazil)

Carlos Jacinto (Federal University of Alagoas)

Tomaz Catunda (Institute of Physics of Sao Carlos, USP)

Marcelo Gomes da Silva (Northern Fluminense State University)

Luis Carlos Malacarne (State University of Maringá, Brazil)

Nelson Guilherme Castelli Astrath (State University of Maringá, Brazil)

Gustavo Vinicius Bassi Lukasievicz (Federal University of Technology – Paraná, Brazil)