Markus P. J. Fromherz Vijay A. Saraswat Daniel G. Bobrow Model-Based Computing: Developing Flexible Machine Control Software. 157-202 1999 114 Artif. Intell. 1-2 db/journals/ai/ai114.html#FromherzSB99 http://dx.doi.org/10.1016/S0004-3702(99)00066-1