@incollection{AST_1981__89-90__163_0,
     author = {Liess, O.},
     title = {Uniqueness for the characteristic {Cauchy} problem and analytic regularity for partial differential equations with polynomial coefficients in the presence of growth type conditions},
     booktitle = {Analytic solutions of partial differential equations - Trento, 1981},
     series = {Ast\'erisque},
     pages = {163--201},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {89-90},
     year = {1981},
     zbl = {0498.35027},
     mrnumber = {666408},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1981__89-90__163_0/}
}