annual Report of the board of Managers of the N. Y. S. Reformatory at Elmira. Trasmitted to the legislature, January, 1891. Reformatory Press. Vedi
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., 1891. - Fifteenth annual Report of the board of Managers of the N. Y. S. Reformatory at Elmira. Trasmitted to the legislature, January, 1891. Reformatory
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state studiate dall'EckersleyT. L. ECKERSLEY, «Proceedings of the Institute of Radio Engineers», vol. 18, n. 1, January 1930., dal Van der Pol e da
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