Ingrid A. Amara

Thresholds, refractory periods, and conduction times of the normal and diseased human atrium.

L. Gettes, A. Woelfel, J. R. Foster, 1988, American heart journal.

A review of some statistical methods for covariance analysis of categorical data.

G. Koch, D. Gillings, I. Amara, 1982, Biometrics.