@misc{indiciae61c61da48029, title = {Quantum Hall effect at a four-terminal junction.}, author = {DG Ravenhall and HW Wyld and RL Schult}, year = {1989}, doi = {10.1103/physrevlett.62.1780}, url = {https://pubmed.ncbi.nlm.nih.gov/10039766/}, note = {Source identifier: 10039766} }