1. Oscilloscopic recording of muscle fiber action potentials. The window trigger and the delay unit;Czekajewski;Electroenceph. clin. Neurophysiol.,1969
2. Single muscle fiber action potentials;Ekstedt;Acta physiol. scand.,1964
3. The construction of needle multi-electrodes for single fiber electromyography;Ekstedt;Electroenceph. clin. Neurophysiol.,1969
4. The diagnostic use of single muscle fiber recording and the neuromuscular jitter in myasthenia gravis;Ekstedt,1965
5. Myasthenia gravis. Diagnostic aspects by a new electrophysiological method;Ekstedt;Opusc. med. (Stockh.),1967