@article{TSG_1999-2000__18__77_0,
     author = {Novitskii, Mikhail V.},
     title = {Two lectures on spectral invariants for the {Schr\"odinger} operator},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     pages = {77--107},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {18},
     year = {1999-2000},
     mrnumber = {1812214},
     zbl = {0973.35145},
     language = {en},
     url = {http://www.numdam.org/item/TSG_1999-2000__18__77_0/}
}