1.
Holter recording of electrocardiograms. Evaluation of current methods
by Hessel, F
Cardiology, 1981, Vol.68 Suppl 1, p.91-96

2.
Atrial fibrillation and atrial flutter in congestive heart failure-- non-medication treatment
by Hoffmann, E
Herz, 1999, Vol.24 (6), p.485-488
