@article{10_4153_CJM_1969_140_x,
     author = {Howard, Henry C.},
     title = {Oscillation {Criteria} for {Matrix} {Differential} {Equations:} {Corrigendum}},
     journal = {Canadian journal of mathematics},
     pages = {1279--1280},
     year = {1969},
     volume = {21},
     number = {1},
     doi = {10.4153/CJM-1969-140-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-140-x/}
}