Petros Maragos, Ronald W. Schafer. Morphological filters-Part I: Their set-theoretic analysis and relations to linear shift-invariant filters. IEEE Transactions on Signal Processing, 35(8):1153-1169, 1987. [doi]
@article{MaragosS87,
title = {Morphological filters-Part I: Their set-theoretic analysis and relations to linear shift-invariant filters},
author = {Petros Maragos and Ronald W. Schafer},
year = {1987},
doi = {10.1109/TASSP.1987.1165259},
url = {http://dx.doi.org/10.1109/TASSP.1987.1165259},
researchr = {https://researchr.org/publication/MaragosS87},
cites = {0},
citedby = {0},
journal = {IEEE Transactions on Signal Processing},
volume = {35},
number = {8},
pages = {1153-1169},
}