@inproceedings{Greenspan-al:ICSE94,
author = {Sol J. Greenspan and
John Mylopoulos and
Alexander Borgida},
title = {On Formal Requirements Modeling Languages: {RML} Revisited},
booktitle = {ICSE},
pages = {135--147},
publisher = {{IEEE} Computer Society / {ACM} Press},
year = {1994},
}