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2. Distal hamstring lengthening in cerebral palsy: an evaluation by gait analysis;Baumann;Int. Orlhop,1980
3. Force platforms as ergometers;Cavaqna;J. Appl. Physiol,1975
4. Der Einsatz der kinematographischen Bewegungsanalyse zur Quantifizierung von Bewegungsmustern bei Kindern mit infantiler Cerebralparese;Fleiss;Krankengymnastik,1978
5. Complications of orthopaedic surgery in the treatment of cerebral palsy;Phelps;Clin. Orlhop,1967