Ionic Actions on Vascular Smooth Muscle formatIsbn:Softcover 9783540078364 the optical network evolved to FACR the optical network evolved to include more exciting technologies needs a minimum area Finally it is a pleasure of the Editor to thank the members of the Physiological Institute of Ttibingen for their encouragement in the ar rangement of the meeting It could be seen in this symposium that new techniques enabled the in vestigators to make considerable progress in the understanding of the actions and the interactions of ions on the membranes and on the inter nal structures of the smooth muscle cells if one compares the findings with the results of the previous symposium held in Ttibingen in 1972