Hopt, Klaus J. MPI for Comparative and International Private Law, Max Planck Society;
http://ssrn.com/abstract=2849865 (Any fulltext)
Böckli, P., Davies, P. L., Ferran, E., Ferrarini, G., Garrido Garcia, J. M., Hopt, K. J., et al. (2016). European Company Law Experts (ECLE), A proposal for reforming group law in the European Union – Comparative observations on the way forward. doi:10.2139/ssrn.2849865.