Characterization of the sleep EEG in acutely depressed men using detrended fluctuation analysis

The Pittsburgh sleep quality index: A new instrument for psychiatric practice and research

Daniel J. Buysse, Charles F. Reynolds, T. H. Monk et al. · Psychiatry Research · 1989 · 34.7K citations

Medicine, Psychiatry, Psychology +16

Development of a Rating Scale for Primary Depressive Illness

Max Hamilton · British Journal of Social and Clinical Psychology · 1967 · 8.5K citations

Social Sciences, Psychiatry, Psychology +17

Self-organized criticality: An explanation of the 1/<i>f</i>noise

Per Bak, Chao Tang, Kurt Wiesenfeld · Physical Review Letters · 1987 · 7.6K citations

Natural Sciences, Mathematics, Physics +17

Mosaic organization of DNA nucleotides

Chung‐Kang Peng, Sergey V. Buldyrev, Shlomo Havlin et al. · Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics · 1994 · 5K citations · Full text

Life Sciences, Genetics, Molecular Biology +8

Quantification of scaling exponents and crossover phenomena in nonstationary heartbeat time series

Chung‐Kang Peng, Shlomo Havlin, H. Eugene Stanley et al. · Chaos An Interdisciplinary Journal of Nonlinear Science · 1995 · 3.9K citations

Natural Sciences, Biophysics, Physiology +16