@article{JLT_2013_23_4_JLT_2013_23_4_a1,
     author = {K. Ghanbari and H. Mirzaei },
     title = {On the {Isospectral} {Sixth} {Order} {Sturm-Liouville} {Equation}},
     journal = {Journal of Lie theory},
     pages = {921--935},
     publisher = {mathdoc},
     volume = {23},
     number = {4},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/JLT_2013_23_4_JLT_2013_23_4_a1/}
}