@article{article91e2eea4, title = {Technique for constructing grey-scale morphological operators using fuzzy expert systems}, author = {Hae, Yong Kim and Cipparrone, Flávio Almeida de Magalhães and Andrade, Marco Túlio Carvalho de}, year = {1997}, doi = {10.1049/el:19971268}, journal = {Electronics Letters} }