1. The long-term treatment of heart block;Chardack, W.M.; Gage, A.A.; Federico, A.J.; Schimert, G.; Greatbatch, W.;Progr. cardiovasc. Dis,1966
2. Self-synchronising cardiac;Denoth, F.; Donato, L.A.;Trans. Bio-Med. Eng. BME,1967
3. Atrial-triggered pacemaking without thoracotomy: Apparatus and results in twenty cases;Lagergren, H.; Johansson, L.; Karlof, I.; Thornander, H.;Acta chir. scand,1966
4. Synchronous electronic ventricular pacing in complete heart block;Nathan, D.;J. Amer. med. Ass,1967
5. An implantable demand pacemaker;Neville, J.; Millar, K.; Keller, W.; Abildskov, J.A.;Clin. Res,1966