Zamfir, N., O. Plotnic, M. Tofan, I. Milošević, and M. Menshikova. “Regulatory Framework for Innovation and Advancing Climate Neutrality Through Circular Economy Sandboxes”. Strategic Planning for Energy and the Environment, vol. 44, no. 04, Oct. 2025, pp. 793–818, doi:10.13052/spee1048-5236.4447.