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Jonathan R. Wolpaw and Dennis J. McFarland
Control of a two-dimensional movement signal by a noninvasive brain-computer interface in humans
PNAS 2004 101: 17849-17854
Ehud Sivan and Nancy Kopell
From The Cover: Mechanism and circuitry for clustering and fine discrimination of odors in insects
PNAS 2004 101: 17861-17866