Bak P, Tang C, Wiesenfeld K. Comment on "relaxation at the angle of repose". Physical Review Letters. 1989;(1):110-.

Tang C, Nakanishi H, Langer JS. Droplet model for autocorrelation functions in an Ising ferromagnet. Physical Review A. 1989;(2):995-1003.

Wiesenfeld K, Tang C, Bak P. A physicist's sandbox. Journal of Statistical Physics. 1989;(5-6):1441-1458. SCI被引用次数：38.

Bak P, Tang C. Earthquakes as a self-organized critical phenomenon. Journal of Geophysical Research. 1989;(B11):15,635-15,637.