TY  - RPRT
TI  - When is a background equivalent? Sparse chromatic context revisited.
AU  - E Brenner
AU  - F W Cornelissen
PY  - 1998
DO  - 10.1016/s0042-6989(97)00404-5
UR  - https://pubmed.ncbi.nlm.nih.gov/9797957/
ID  - 9797957
ER  -