TY  - JOUR
AU  - Beesack, Paul R.
TI  - On Sturm's Separation Theorem
JO  - Canadian mathematical bulletin
PY  - 1972
SP  - 481
EP  - 487
VL  - 15
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-086-7/
DO  - 10.4153/CMB-1972-086-7
ID  - 10_4153_CMB_1972_086_7
ER  -