@article{10_1017_S0017089500004031,
     author = {Browne, Patrick J. and Sleeman, B. D.},
     title = {Bifurcation from {Eigenvalues} in {Non-Linear} {Multiparameter} {Sturm-Liouville} {Problems}},
     journal = {Glasgow mathematical journal},
     pages = {85--90},
     year = {1980},
     volume = {21},
     number = {1},
     doi = {10.1017/S0017089500004031},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500004031/}
}