Volume 12 (1979) no. 4

Table of contents

Geometric versions of Whitney regularity for smooth stratifications
p. 453-463
Whitney (a)-faults which are hard to detect
p. 465-471
Quasi-elliptic surfaces in characteristic three
p. 473-500
Complexe de de Rham-Witt et cohomologie cristalline
p. 501-661