%0 Journal Article
%A VJ. Nummi
%T Operator-operand languages
%J Annales Fennici Mathematici
%D 1969
%V 421-450
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1969.427/
%R 10.5186/aasfm.1969.427
%G en
%F AFM_1969_421-450_a23