Perrin, R., T. Charnley, and G.M. Swallowe. "On the tuning of church and carillon bells." Applied Acoustics 46/1 (1995): 3–101.

Perrin, R., T. Charnley, and G.M. Swallowe. "On the tuning of church and carillon bells." Applied Acoustics 46/1 (1995): 3–101.