The honorary vice-president of OSTIV, W. Eichenberger Authors L. de Lange The City College of the City University of New York M. Reinhardt Abstract Download full text Author Biography L. de Lange, The City College of the City University of New York http://www.sci.ccny.cuny.edu/~hindman/sumvitae.pdf Downloads PDF Published 2017-12-25 Issue Vol. 13 (1974) Section Comments