%0 Journal Article
%@ 0001-6969
%A  Bouldin Richard
%D 1975
%F acta:14527
%J Acta scientiarum mathematicarum
%K Matematika
%N 3-4
%P 177-190
%T The convex structure of the set of positive approximants for a given operator
%U http://acta.bibl.u-szeged.hu/14527/
%V 37
%Z Bibliogr.: 190. p.