@misc{indiciae13467abd746f, title = {[External mechanical cardiac stimulation. Methods and possible application (author's transl)].}, author = {A Wirtzfeld and F C Himmler and B Forssmann and W Hepp and W Erhardt and I Wriedt-Lübbe and G Blümel and H Blömer}, year = {1979}, url = {https://pubmed.ncbi.nlm.nih.gov/543207/}, note = {Source identifier: 543207} }