题目：The Relation of Logic to Metaphysics

作者：Everett J. Nelson

刊物：Philosophy and Phenomenological Research

    链接：http://www.jstor.org/pss/2104068

题目：The Metaphysics of Logic

作者：Everett W. Hall

刊物：The Philosophical Review

    链接：http://www.jstor.org/pss/2181832