CHAN, Christine W. Knowledge and software modeling using UML. In: Software and systems modeling. December 2004, 3(4), 294-302. doi:10.1007/s10270-004-0057-y. ISSN 1619-1366 (Print). ISSN 1619-1374 (Online).
Dostupný komerčně také ze SpringerLINK (DOI, Licence UK): http://dx.doi.org/10.1007/s10270-004-0057-y nebo http://link.springer.com/article/10.1007%2Fs10270-004-0057-y.