@misc{misce519de23,
title   = {An OCR based on Mathematical Morphology},
author = {Barrera, Júnior and Terada, Routo and Lotufo, Roberto Alencar and Hirata, Nina Sumiko Tomita and Hirata Júnior, Roberto and Zampirolli, Francisco de Assis},
year = {1998},
doi = {10.1117/12.304600},
publisher = {SPIE},
booktitle   = {Nonlinear Image Processing}
}