Roberta Spencer, Executive Director of System Dynamics Society

August 13, 2013 ⋅

Roberta Spencer speaking at System Dynamics Society 2013 Boston conference in Cambridge 3290

Roberta Spencer speaking at System Dynamics Society 2013 Boston conference in Cambridge 3290

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Ignacio Martínez-Moyano

Roberta L. Spencer, Executive Director of System Dynamics Society

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