Y. Bar-Yam, Dynamics of Complex Systems, Chapters 2 and 3.
R. Sadr-Lahijany and Y. Bar-Yam: Substructure in Complex Systems and Partially Subdivided Neural Networks I: Stability of Composite Patterns, InterJournal. PDF file
Y. Bar-Yam: Sleep as Temporary Brain Dissociation, NECSI Research Report YB-0005, 1993. PDF file
Y. Bar-Yam, "Neural networks with subdivision" U.S. Patent No. 5,687,286 (1997)