@article{EJDE_2010__2010__a276,
     author = {Harutyunyan,  Tigran N.},
     title = {Representation of the norming constants by two spectra},
     journal = {Electronic journal of differential equations},
     year = {2010},
     volume = {2010},
     zbl = {1222.34030},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a276/}
}