Klaas van den Berg, Anthony J. H. Simons. Control-flow semantics of use cases in UML. Information \& Software Technology, 41(10):651-659, 1999. [doi]
@article{BergS99,
title = {Control-flow semantics of use cases in UML},
author = {Klaas van den Berg and Anthony J. H. Simons},
year = {1999},
doi = {10.1016/S0950-5849(99)00027-0},
url = {http://dx.doi.org/10.1016/S0950-5849(99)00027-0},
tags = {semantics, UML, data-flow},
researchr = {https://researchr.org/publication/BergS99},
cites = {0},
citedby = {0},
journal = {Information \& Software Technology},
volume = {41},
number = {10},
pages = {651-659},
}