1. Ferrans, V. J., Massumi, R. A., Shugoll, A. N., Roberts, W. C.: Ultrastructural studies of myocardial biopsies in 45 patients with obstructive or congestive cardiomyopathy. In: Cardiomyopathies. Bajusz, E., Rona, G. (eds.). Munich: Urban und Schwarzenberg 1974
2. Hatt, P.Y., Berjal, G., Moravec, J., Swynghedauw, B.: Heart failure: An electron microscopic study of the left ventricular papillary muscle in aortic insufficiency in the rabbit. J. mol. cell. Biol. 1, 235(1970)
3. Jones, M., Ferrans, V.J., Morrow, A.G., Roberts, W.: Ultrastructure of crista supraventricularis muscle in patients with congenital heart diseases associated with right ventricular outflow tract obstruction. Circulation 51, 39 (1975)
4. Kuhn, H., Breithardt, G., Knieriem, H.-J., Loogen, F., Both, A., Schmidt, W.-A.K., Strobandt, R., Gleichmann, U.: Die Bedeutung der endomyokardialen Katheterbiopsie für die Diagnostik und Beurteilung der Prognose der kongestiven Kardiomyopathie. Dtsch. med. Wschr. 100, 717 (1975)
5. Maron, B., Ferrans, V.J., Henry, W., Clark, C.E., Redwood, D., Roberts, W.C., Morrow, A.G., Epstein, S.: Differences in distribution of myocardial abnormalities in patients with obstructive and nonobstructive asymmetrical septum hypertrophy. Circulation 50, 436 (1974)