@article{RSMUP_1990__84__71_0,
     author = {Agliardi, Rossella},
     title = {Fourier integral operators of infinite order on $\mathcal {D}^{ \left\lbrace  \sigma \right\rbrace }_{L^2} \left(\mathcal {D}^{\left\lbrace  \sigma \right\rbrace ^{\prime }}_{L^2}\right)$ with an application to a certain {Cauchy} problem},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {71--82},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {84},
     year = {1990},
     zbl = {0737.35172},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1990__84__71_0/}
}