1. Answers to some common questions about Spectrax SX™ pulse generators (part 11);Anderson;Medtronic News,1980
2. 5984 LP, 5985 Technical Manual;Spectrax SX 5984;Medtronic. Inc.,1984
3. Sources of error in the determination of output voltage of pulse generators by pacemaker system analyzers;Barold;PAGE,1980
4. Medtronome Medtronic Europe, Paris, France 1981 10