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@article{MZM_1984_36_2_a7, author = {M. A. Akivis}, title = {Flat hyperdistributions in $P^n$}, journal = {Matemati\v{c}eskie zametki}, pages = {213--222}, publisher = {mathdoc}, volume = {36}, number = {2}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1984_36_2_a7/} }
M. A. Akivis. Flat hyperdistributions in $P^n$. Matematičeskie zametki, Tome 36 (1984) no. 2, pp. 213-222. http://geodesic.mathdoc.fr/item/MZM_1984_36_2_a7/