@article{EJDE_2009__2009__a198,
     author = {Makin,  Alexander},
     title = {Regularized trace of the {Sturm-Liouville} operator with irregular boundary conditions},
     journal = {Electronic journal of differential equations},
     year = {2009},
     volume = {2009},
     zbl = {1171.34355},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a198/}
}