Chattopadhyay, On the dispersion equations for Love waves due to irregularity in the thickness of non homogeneous crustal layer, Acta Geophysica Polonica , 23 (1975), 307
Wolf , Propagation of Love waves in Layers with irregular boundaries, Pure and Appl.
Periods of G waves lie in the range from about 50 to 350s, corresponding to a flat portion of the group velocity curve for Love waves, which has been extended up to periods of around 700s (Burne, Benioff and Ewing 1961).
which is the usual dispersion equation for Love waves with [[beta].
1961, "The effect of variations in layer thickness of Love waves," Bull Seis Soc.
1962, "On the dispersion curve for Love waves due to irregularity in the thickness of the transversely isotropic crustal layer," Gerl Beitr Z Geophys.
A note on Love waves
in a homogeneous crust overlying an inhomogeneous substratum, Bulletin of the Seismological Society of America 52(3): 639- 645.