%0 Journal Article
%A Willett, D.
%T Oscillation on Finite or Infinite Intervals of Second Order Linear Differential Equations(1)
%J Canadian mathematical bulletin
%D 1971
%P 539-550
%V 14
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-096-8/
%R 10.4153/CMB-1971-096-8
%F 10_4153_CMB_1971_096_8