Edward R. Dougherty, Charles R. Giardina. Morphology on umbra Matrices. IJPRAI, 2(2):367-386, 1988. [doi]
@article{DoughertyG88,
title = {Morphology on umbra Matrices},
author = {Edward R. Dougherty and Charles R. Giardina},
year = {1988},
doi = {10.1142/S0218001488000224},
url = {http://dx.doi.org/10.1142/S0218001488000224},
researchr = {https://researchr.org/publication/DoughertyG88},
cites = {0},
citedby = {0},
journal = {IJPRAI},
volume = {2},
number = {2},
pages = {367-386},
}