A New Chart for Monitoring the Covariance Matrix of Bivariate Processes. - Antonio Fernando Branco Costa; Marcela Aparecida Guerreiro Machado (Commun. Stat. Simul. Comput., 2008)

The synthetic control chart based on two sample variances for monitoring the covariance matrix. - Marcela Aparecida Guerreiro Machado; Antonio Fernando Branco Costa; M. A. Rahim 001 (Qual. Reliab. Eng. Int., 2009)

Economic-statistical design of the X chart used to control a wandering process mean using genetic algorithm. - Bruno Chaves Franco; Antonio Fernando Branco Costa; Marcela Aparecida Guerreiro Machado (Expert Syst. Appl., 2012)

A single chart with supplementary runs rules for monitoring the mean vector and the covariance matrix of multivariate processes. - Antonio Fernando Branco Costa; Marcela Aparecida Guerreiro Machado (Comput. Ind. Eng., 2013)

The effect of the autocorrelation on the performance of the T2 chart. - Roberto Campos Leoni; Antonio Fernando Branco Costa; Marcela Aparecida Guerreiro Machado (Eur. J. Oper. Res., 2015)

The steady-state behavior of the synthetic and side-sensitive synthetic double sampling X¯ charts. - Antonio Fernando Branco Costa; Marcela Aparecida Guerreiro Machado (Qual. Reliab. Eng. Int., 2015)

Simultaneous Univariate X_bar Charts to Control Bivariate Processes with Autocorrelated Data. - Roberto Campos Leoni; Marcela Aparecida Guerreiro Machado; Antonio Fernando Branco Costa (Qual. Reliab. Eng. Int., 2015)

A side-sensitive synthetic chart combined with a VSS chart. - Antonio Fernando Branco Costa; Marcela Aparecida Guerreiro Machado (Comput. Ind. Eng., 2016)

Synthetic charts to control bivariate processes with autocorrelated data. - Felipe Domingues Simões; Roberto Campos Leoni; Marcela Aparecida Guerreiro Machado; Antonio Fernando Branco Costa (Comput. Ind. Eng., 2016)

Attribute control charts for monitoring the covariance matrix of bivariate processes. - Marcela Aparecida Guerreiro Machado; Linda Lee Ho; Antonio Fernando Branco Costa (Qual. Reliab. Eng. Int., 2018)