@NationalConference{DL12,
author = {DAO, T. and LE, T.},
title = {A mail delivery robot based on room number plate recognition},
booktitle = {The 6th Vietnam Conference on Mechatronics - VCM 2012},
month = {December},
year = {2012},
address = {Hanoi, Vietnam},
url = {/2012/DL12},
}