...rface/plugins/algorithms/LiquidsReflectometryReduction.py

.../Mantid/Framework/WorkflowAlgorithms/src/RefReduction.cpp

Code/Mantid/Framework/WorkflowAlgorithms/src/RefRoi.cpp

...Tests/tests/analysis/LiquidsReflectometryReductionTest.py

...alysis/LiquidsReflectometryReductionWithBackgroundTest.py

...antid/Testing/SystemTests/tests/analysis/REFLReduction.py

.../Testing/SystemTests/tests/analysis/REFLWithBackground.py

Code/Mantid/Testing/SystemTests/tests/analysis/RefRoi.py

...cripts/reduction/instruments/reflectometer/wks_utility.py