Kwabena Agyapong-Kodua Joseph O. Ajaefobi Richard H. Weston Modelling dynamic value streams in support of process design and evaluation. 411-427 2009 22 Int. J. Computer Integrated Manufacturing 5 http://dx.doi.org/10.1080/09511920802527574 db/journals/ijcim/ijcim22.html#Agyapong-KoduaAW09