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@article{IVM_1992_5_a7, author = {V. N. Rubtsov}, title = {Topological invariants of elliptic {Spencer} complexes of {Lie} equations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {74--92}, publisher = {mathdoc}, number = {5}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1992_5_a7/} }
V. N. Rubtsov. Topological invariants of elliptic Spencer complexes of Lie equations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 5 (1992), pp. 74-92. http://geodesic.mathdoc.fr/item/IVM_1992_5_a7/