M. Revilla

Resonance of about-weekly human heart rate rhythm with solar activity change.

N. Kleitman, H. Wendt, R. Sothern, 1996, Biologia.

Heart rate biorhythm changes during the first three months of life.

J. Ardura, M. Revilla, J. Andres, 1997, Biology of the neonate.

Computer analysis of environmental temperature, light and noise in intensive care: chaos or chronome nurseries?

G. Cornelissen, F. Halberg, J. Ardura, 1997, Medical hypotheses.