TY  - RPRT
TI  - The effects of unavoidable shocks on a multiple schedule having an avoidance component.
AU  - M B WALLER
AU  - P F WALLER
PY  - 1963
DO  - 10.1901/jeab.1963.6-29
UR  - https://pubmed.ncbi.nlm.nih.gov/13998594/
ID  - 13998594
ER  -