W.L.J. Martens

Measuring daily behavior using ambulatory accelerometry: The Activity Monitor

Johannes B. Bussmann, W.L.J. Martens, J.H.M. Tulen et al. · Behavior Research Methods, Instruments, & Computers · 2001 · 313 citations · Full text

Physical Activity, Kinesiology, Accelerometer +5

Validity and Reliability of Measurements Obtained With an “Activity Monitor” in People With and Without a Transtibial Amputation

Hans Bussmann, Petra J Reuvekamp, Petrus H. Veltink et al. · Physical Therapy · 1998 · 119 citations · Full text

Human sleep spindle characteristics after sleep deprivation

Vera Knoblauch, W.L.J. Martens, Anna Wirz‐Justice et al. · Clinical Neurophysiology · 2003 · 82 citations

Sleep Disorders, Sleep, Sleep Medicine +10

Theory and practice of a posteriori “Wiener” filtering of average evoked potentials

J. P. C. de Weerd, W.L.J. Martens · Biological Cybernetics · 1978 · 67 citations

Statistical Signal Processing, Engineering, Filtering Technique +11

Age-Related Changes in the Circadian Modulation of Sleep-Spindle Frequency During Nap Sleep

Vera Knoblauch, Mirjam Münch, Katharina Blatter et al. · SLEEP · 2005 · 58 citations · Full text