Palm, G Former Department Structure and Function of Natural Nerve-Net , Max Planck Institute for Biological Cybernetics, Max Planck Society; Max Planck Institute for Biological Cybernetics, Max Planck Society;
https://www.cambridge.org/core/journals/quarterly-reviews-of-biophysics/article/volterra-representation-and-wienerlike-identification-of-nonlinear-systems-scope-and-limitations/92B3D6FA12920BA4FE0FD66C507E9A70 (Publisher version)
Palm, G., & Pöpel, B. (1985). Volterra representation and Wiener-like identification of nonlinear systems: scope and limitations. Quarterly Reviews of Biophysics, 18(2), 135-164. doi:10.1017/S0033583500005163.