%0 Journal Article %A Faierman, M. %T A Note on Klein’s Oscillation Theorem for Periodic Boundary Conditions %J Canadian mathematical bulletin %D 1975 %P 749-755 %V 17 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-135-2/ %R 10.4153/CMB-1974-135-2 %F 10_4153_CMB_1974_135_2