@misc{indiciae01f0177dfc61, title = {Topological long-range order for resonating-valence-bond structures.}, author = {DJ Klein and TP Zivkovic and R Valenti}, year = {1991}, doi = {10.1103/physrevb.43.723}, url = {https://pubmed.ncbi.nlm.nih.gov/9996265/}, note = {Source identifier: 9996265} }