Power law temporal auto-correlations in day-long records of human physical activity and their alteration with diseaseL. A. Nunes Amaral, D. J. Bezerra Soares, L. R. da Silva, L. S. Lucena, M. Saito, H. Kumano, N. Aoyagi and Y. YamamotoEurophys. Lett., 66 3 (2004) 448-454DOI: https://doi.org/10.1209/epl/i2003-10227-7