It is 3.
1. Cutting a Graph Into Two Dissimilar Halves. Paul Erdos, Janos Pach, Mark Goldberg, Joel Spencer. 1986. 2. XY Interpolation Algorithms, K. Goldberg and M. Goldberg, Robotics Age, May/June, 1983. 3. Unsupervised Scoring for Internet-based Collaborative Tele-operation, Ken Goldberg, Dezhen Song, In Yong Song, Jane McGonigal, Wei Zheng, and Dana Plautz, IEEE International Conference on Robotics and Automation (ICRA), April 2004.
Not bad for a girl in a performance studies program! Now: where is the Cafe Press store for "My Erdos # is _" merchandise?