@talk{5404, title = {Impact of target-to-target interval on classification performance in the P300 speller}, author = {Martens, SMM. and Hill, J. and Farquhar, J. and Sch{\"o}lkopf, B.}, organization = {Max-Planck-Gesellschaft}, school = {Biologische Kybernetik}, month = may, year = {2007}, doi = {}, month_numeric = {5} }