TY  - RPRT
TI  - Spin gaps and bilayer coupling in YBa2Cu3O7- delta and YBa2Cu4O8.
AU  - AJ Millis
AU  - H Monien
PY  - 1994
DO  - 10.1103/physrevb.50.16606
UR  - https://pubmed.ncbi.nlm.nih.gov/9976049/
ID  - 9976049
ER  -