TY - JOUR AB - AU - Leo APOSTEL, Frank VAN DUN DA - 1977/1// DO - 10.21825/philosophica.82657 IS - 0 VL - 20 PB - Department of Philosophy and Moral Science at Ghent University. PY - 1977 TI - Introduction T2 - Philosophica UR - https://www.philosophica.ugent.be/article/id/82657/ ER -