 In the 1970s Burks began meeting with Bob Axelrod, Michael Cohen, and John Holland, researchers with interests in interdisciplinary approaches to studying complex adaptive systems.Known as the BACH group (an acronym of their surnames), it came to include, among others, Pulitzer Prize winner Douglas Hofstadter, evolutionary biologist William Hamilton, microbiologist Michael Savageau, mathematician Carl Simon and computer scientists Reiko Tanese, Melanie Mitchell and Rick Riolo.The BACH group continues to meet irregularly as part of the University of Michigan's Center for the Study of Complex Systems (CSCS).