TY  - RPRT
TI  - A probing question.
AU  - N H Stoller
AU  - K Ela
PY  - 1989
DO  - 10.1016/s0002-8177(89)95006-x
UR  - https://pubmed.ncbi.nlm.nih.gov/2607061/
ID  - 2607061
ER  -