Bending stiffness of biological membranes: What can be measured by neutron spin echo? Michael Mell, Lara H. Moleiro, Yvonne Hertle, Peter Fouquet, Ralf Schweins, Iván López-Montero, Thomas Hellweg and Francisco Monroy Eur. Phys. J. E, 36 7 (2013) 75 Published online: 16 July 2013 DOI: 10.1140/epje/i2013-13075-2