TY - JOUR AB - AU - Leo APOSTEL DA - 1981/1// DO - 10.21825/philosophica.82603 IS - 0 VL - 27 PB - Department of Philosophy and Moral Science at Ghent University. PY - 1981 TI - Introduction T2 - Philosophica UR - https://www.philosophica.ugent.be/article/id/82603/ ER -