Group Delay Estimation with Wideband Signals. - Ramutis A. Zakarevicius (IEEE Trans. Commun., 1979)

Single-Ended Transmission Path Measurements. - Ramutis A. Zakarevicius (IEEE Trans. Commun., 1979)

The integrator as a time delay estimator. - Ramutis A. Zakarevicius; E. H. Fooks; C. J. E. Phillips (ICASSP, 1986)

On the Speed Tolerance of Certain Classes of Data Transmission Systems. - Ramutis A. Zakarevicius; Kamilo Feher (IEEE Trans. Commun., 1986)