Structure and motion : membranes, nucleic acids & proteins : proceedings of the International Symposium on Structure and Dynamics of Membranes, Nucleic Acids & Proteins held in Rome, Italy, April 23-27, 1984 at the Accademia nazionale dei Lincei, under the sponsorship of the academy, National Foundation for Cancer Research, and International Business Machines Corporation / edited by E. Clementi .....