%0 Journal Article
%A Henryk Brzeskwiniewicz
%T E-optimality of PBB designs with two associate classes
%J Mathematica Applicanda
%D 1989
%P  39-46
%V 17
%N 31
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/ma.v17i31.1763/
%R 10.14708/ma.v17i31.1763
%G pl
%F 10_14708_ma_v17i31_1763