TY  - RPRT
TI  - Quantum corrections to the spin-correlation function and the spin-stiffness constant in a two-dimensional Heisenberg antiferromagnet at zero temperature.
AU  - Ji Igarashi
AU  - A Watabe
PY  - 1991
DO  - 10.1103/physrevb.44.5057
UR  - https://pubmed.ncbi.nlm.nih.gov/9998313/
ID  - 9998313
ER  -