@article{ASNSP_1969_3_23_4_563_0,
     author = {Kannai, Yakar},
     title = {On the asymptotic behavior of resolvent kernels, spectral functions and eigenvalues of semi-elliptic systems},
     journal = {Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche},
     pages = {563--634},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 23},
     number = {4},
     year = {1969},
     mrnumber = {415092},
     zbl = {0193.07301},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1969_3_23_4_563_0/}
}