Non completely solvable systems of complex first order PDEs
Rendiconti del Seminario Matematico della Università di Padova, Tome 129 (2013), pp. 129-170.
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Denson Hill, C.; Nacinovich, Mauro. Non completely solvable systems of complex first order PDEs. Rendiconti del Seminario Matematico della Università di Padova, Tome 129 (2013), pp. 129-170. http://www.numdam.org/item/RSMUP_2013__129__129_0/

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