@InProceedings{l02-p105-117, AUTHOR = {Maria~Isabel Gonzalez~Vasco and Mats N\"aslund and Igor Shparlinski}, TITLE = {The Hidden Number Problem in Extension Fields and Its Applications}, YEAR = 2002, BOOKTITLE = {Proc.~of the 5th Latin American Symposium on Theoretical Informatics (LATIN'02)}, ADDRESS = {Cancun, Mexico}, PAGES = {105--117}, KEYWORDS = {}}