Stability of controlled biological systems. Walter C. J Theor Biol. 1969 Apr;23(1):23-38. doi: 10.1016/0022-5193(69)90065-4. PMID: 5798216
Oscillatory phenomena in kinetic antipercolation. Bradley RM, Wu K. Phys Rev A. 1992 Jan 15;45(2):1255-1258. doi: 10.1103/physreva.45.1255. PMID: 9907093