Affiliation: | (1) Inter-University Consortium for Political Research, USA;(2) Center for Political Studies, Institute for Social Research, USA;(3) University of Michigan, USA;(4) University of Connecticut, USA;(5) Harvard University, USA;(6) Machine-Readable Archives Division, National Archives, USA;(7) Computer Science and Linguistics, Queens College and Graduate School of The City University of New York, USA;(8) IBM Programming Development Center, Palo Alto |