A new estimator to minimize the error due to breathing in the measurement of respiratory impedance. - Daniel Navajas; Ramon Farré; Mar Rotger; Rene Peslin (IEEE Trans. Biomed. Eng., 1988)

A correction procedure for the asymmetry of differential pressure transducers in respiratory impedance measurements. - Ramon Farré; Daniel Navajas; Rene Peslin; Mar Rotger; Claude Duvivier (IEEE Trans. Biomed. Eng., 1989)

Analog circuit for real-time computation of respiratory mechanical impedance in sleep studies. - Ramon Farré; Mar Rotger; Josep Maria Montserrat; Daniel Navajas (IEEE Trans. Biomed. Eng., 1997)