by Paton, Ray.
by Ghosh, Ashish | Tsutsui, Shigeyoshi.
by Kallel, Leila | Kallel, Leila | Naudts, B | Naudts, B | Rogers, A | Rogers, A.
by Hingston, Philip F | Barone, Luigi C | Michalewicz, Zbigniew.
by Yeung, Daniel S.
by Paun, Gheorghe.
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