@article{AM_2000_152_2_a5,
     author = {Fritz Gesztesy and Barry Simon},
     title = {A new approach to inverse spectral theory. {II:} {General} real potentials and the connection to the spectral measure},
     journal = {Annals of mathematics},
     publisher = {mathdoc},
     volume = {152},
     number = {2},
     year = {2000},
     url = {http://geodesic.mathdoc.fr/item/AM_2000_152_2_a5/}
}