1. Neurophysiological findings in myasthenia gravis. Single muscle fibre activity in relation to muscular fatiguability and response to anticholinesterase;Blom, S.; Ringqvist, I.;Electroencephalography and Clinical Neurophysiology,1971
2. Oscilloscopic recording of muscle fiber action potentials. The window trigger and the delay unit;Czekajewski, J.; Ekstedt, J.; Stalberg, E.;Electroencephalograph), and Clinical Neurophysiology,1969
3. Human single muscle fiber action potentials;Ekstedt, J.;Acta Physiologica Scandinavica,1964
4. The construction of needle multi-electrodes for single fiber electromyography;Ekstedt, J.; Haggqvist, P.; Stalberg, E.;Electroencephalography and Clinical Neurophysiology,1969
5. The jittermeter: a variability calculator for use in single fiber electromyography;Ekstedt, J.; Lindholm, B.; Ljunggren, S.; Stalberg, E.;Electroencephalography and Clinical Neurophysiology,1971