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by Eppstein, David
by Halperin; Sandra
by U.s. Department of Transportation
by National Aeronautics and Space Administration
by De Cauwer, Stijn; Smith, Laura Katherine
by Neumann, Birgit; Rippl, Gabriele
by Rooryck,Johan
by Spencer; Paul
by Hardy, Sarah; Wiedmer, Caroline
by Cho; Sonjeong