%0 Journal Article %A Arto Salomaa %T On meta-normal forms for algebraic power series in noncommuting variables %J Annales Fennici Mathematici %D 1985 %P 501-510 %V 10 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1985.1056/ %R 10.5186/aasfm.1985.1056 %G en %F AFM_1985_10_1_a55