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by Krasovskii, N. N.; Subbotin, A. I.; Kotz, Samuel
by Dzhaparidze, K.; Kotz, Samuel
by Johnson, Norman L.; Kotz, Samuel
by Kotz, Samuel; Johnson, Norman Lloyd
by Kotz, Samuel
by Samuel Kotz; Tomasz Kozubowski; Krzystof Podgorski
by Kotz, Samuel; Lovelace, Cynthia R.