TY  - RPRT
TI  - On the classical trapping problem.
AU  - C P Calderón
AU  - T A Kwembe
PY  - 1990
DO  - 10.1016/0025-5564(90)90061-3
UR  - https://pubmed.ncbi.nlm.nih.gov/2134492/
ID  - 2134492
ER  -