TY  - RPRT
TI  - Attractive interaction between steps.
AU  - J Frohn
AU  - M Giesen
AU  - M Poensgen
AU  - JF Wolf
AU  - H Ibach
PY  - 1991
DO  - 10.1103/physrevlett.67.3543
UR  - https://pubmed.ncbi.nlm.nih.gov/10044762/
ID  - 10044762
ER  -