%0 Journal Article %A Browne, Patrick J. %A Nillsen, Rodney %T The Two-Sided Factorization of Ordinary Differential Operators %J Canadian journal of mathematics %D 1980 %P 1045-1057 %V 32 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-080-5/ %R 10.4153/CJM-1980-080-5 %F 10_4153_CJM_1980_080_5