Well posedness under Levi conditions for a degenerate second order Cauchy problem
Rendiconti del Seminario Matematico della Università di Padova, Tome 117 (2007), pp. 113-126 
@article{RSMUP_2007__117__113_0,
     author = {Ascanelli, Alessia},
     title = {Well posedness under {Levi} conditions for a degenerate second order {Cauchy} problem},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {113--126},
     year = {2007},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {117},
     mrnumber = {2351788},
     zbl = {1146.35054},
     language = {en},
     url = {https://www.numdam.org/item/RSMUP_2007__117__113_0/}
}
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Ascanelli, Alessia. Well posedness under Levi conditions for a degenerate second order Cauchy problem. Rendiconti del Seminario Matematico della Università di Padova, Tome 117 (2007), pp. 113-126. https://www.numdam.org/item/RSMUP_2007__117__113_0/

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