%0 Journal Article
%A Dekker, J. C. E.
%T Isols and balanced block designs with $\lambda = 1$
%J Compositio Mathematica
%D 1983
%P 75-93
%V 49
%N 1
%I Martinus Nijhoff Publishers
%U http://archive.numdam.org/item/CM_1983__49_1_75_0/
%G en
%F CM_1983__49_1_75_0