Collected works - Brouwer, L. E. J. (Luitzen Egbertus Jan), 1881-1966; Heyting, A. (Arend), 1898-; Freudenthal, Hans (Amsterdam : North-Holland Publishing, 1975)
v. 1. Philosophy and foundations of mathematics, edited by A. Heyting.- v. 2. Geometry, analysis, topology and mechanics, edited by H. Freudenthal
Bibliography : vol. 1, p. 613-621
Bibliography : vol. 2, p. 689-706
Keywords: Mathematics