$\mathsf{LightChain}$: A Lightweight Blockchain…
https://cse.buffalo.edu/~wenyaoxu/papers/journal/xu-tii2019.pdf
14 Sep 2019:
Additionally, Li et al. [25] upgraded ledgerstructure from linearity to DAG. ... 5] H. Li, K. Wang, T. Miyazaki, C. Xu, Y. Sun, and S.