BALLISTOCARDIOGRAPHIC 193,471 Ballistocardiographic methoda and cardlovascular dynamics. Proceedinga of the 3rd World and 9th European Congress on Ballistocardiography and Cardiovascular Dynamics. Sofia, April 1973. Ed. A. A. Talakov. Basel 1975 S. Karger 4° a. XV, nlb.. 1, 239, ilustr. Bibliotheca Cardiologica, No. 33.