TY  - RPRT
TI  - Exact Green's function for the step and square-barrier potentials.
AU  - de Aguiar MA
PY  - 1993
DO  - 10.1103/physreva.48.2567
UR  - https://pubmed.ncbi.nlm.nih.gov/9909906/
ID  - 9909906
ER  -