%0 Journal Article
%A Urbanowicz, Jerzy
%T Connections between $B_{2,\chi }$ for even quadratic Dirichlet characters $\chi $ and class numbers of appropriate imaginary quadratic fields, I
%J Compositio Mathematica
%D 1990
%P 247-270
%V 75
%N 3
%I Kluwer Academic Publishers
%U http://archive.numdam.org/item/CM_1990__75_3_247_0/
%G en
%F CM_1990__75_3_247_0