@article{10_4064_ap_42_1_333_344,
     author = {Marko \v{S}vec},
     title = {Behaviour of solutions of a fourth-order self-adjoint linear differential equation},
     journal = {Annales Polonici Mathematici},
     pages = {333--344},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {1983},
     doi = {10.4064/ap-42-1-333-344},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-42-1-333-344/}
}