Backward parabolic equations
Analytic solutions of partial differential equations - Trento, 1981, Astérisque no. 89-90  (1981), p. 213-221 
@incollection{AST_1981__89-90__213_0,
     author = {Lousberg, P.},
     title = {Backward parabolic equations},
     booktitle = {Analytic solutions of partial differential equations - Trento, 1981},
     author = {Collectif},
     series = {Ast\'erisque},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {89-90},
     year = {1981},
     pages = {213-221},
     zbl = {0502.35085},
     mrnumber = {666410},
     language = {en},
     url = {http://www.numdam.org/item/AST_1981__89-90__213_0}
}

Lousberg, P. Backward parabolic equations, in Analytic solutions of partial differential equations - Trento, 1981, Astérisque, no. 89-90 (1981), pp. 213-221. http://www.numdam.org/item/AST_1981__89-90__213_0/

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