@incollection{JEDP_1996____A10_0, author = {Dencker, Nils}, title = {The solvability of non $L^2$ solvable operators}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {10}, pages = {1--11}, publisher = {Ecole polytechnique}, year = {1996}, mrnumber = {97i:35201}, zbl = {0885.35151}, language = {en}, url = {http://www.numdam.org/item/JEDP_1996____A10_0/} }
Dencker, Nils. The solvability of non $L^2$ solvable operators. Journées équations aux dérivées partielles (1996), article no. 10, 11 p. http://www.numdam.org/item/JEDP_1996____A10_0/
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