@INPROCEEDINGS{helm-marriott-odersky:chi91,
AUTHOR = "R. Helm and K. Marriott and M. Odersky",
TITLE = "Building Visual Language Parsers",
BOOKTITLE = {Proc. ACM SIGCHI Conf. on Human Factors in Computing Systems},
YEAR = "1991",
PAGES = "105-112"
}