Division of Engineering and Applied Sciences, Harvard University, 29 Oxford St., Cambridge, MA 02138 United States
Departement de Mecanique, Institut des Sciences et Techniques de l'Ingenieur, Lyon, 69125 France
Division of Engineering and Applied Sciences, Harvard University, 29 Oxford St., Cambridge, MA 02138 United States
Division of Engineering and Applied Sciences, Harvard University, 29 Oxford St., Cambridge, MA 02138 United States ; Department of Earth and Planetary Sciences, Harvard University, 20 Oxford St., Cambridge, MA 02138 United States