S.  Klasky, Barreto, R., Kahn, A., Parashar, M., Podhorszki, N., Parker, S., Silver, D., and Vouk, M. A., ?Collaborative Visualization Spaces for Petascale Simulations?, in Proceedings of the 2008 International Symposium on Collaborative Technologies and Systems (CTS 2008), Irvine, CA, USA, 2008.