Most cited MAS articles on google scholar

Here are the top five most cited articles returned by google scholar on a search for "Multi agent":

Ferber, "Multi-Agent Systems: An Introduction to Distributed Artificial Intelligence", 1999

Lux and Marchesi, "SCALING AND CRITICALITY IN A STOCHASTIC MULTI-AGENT MODEL OF A FINANCIAL MARKET", Nature: International weekly journal of science, 1999

Littman, "Markov games as a framework for multi-agent reinforcement learning", ICML, 1994

Nwana, Ndumu, Lee, and Collis, "ZEUS: A toolkit for building distributed multi-agent
systems'' Applied Artificial Intelligence, 1999

Ferber and Gutknecht, “"A meta-model for the analysis and design of organizations in multiagent
systems",” (ICMAS-98).

I guess the golden age for multi-agents was about 10 years ago ....