Errata to the papers : “Connections between ${B}_{2,\chi }$ for even quadratic Dirichlet characters $\chi$” and “Class numbers of appropriate imaginary quadratic fields, parts I and II”
Compositio Mathematica, Tome 77 (1991) no. 1 , p. 119-125
URL stable : http://www.numdam.org/item?id=CM_1991__77_1_119_0