Geodesic
Hypoelliptic differential operators
Matematika, Tome 7 (1963) no. 1, pp. 66-78 
L. Hörmander. Hypoelliptic differential operators. Matematika, Tome 7 (1963) no. 1, pp. 66-78. http://geodesic.mathdoc.fr/item/MAT_1963_7_1_a3/
@article{MAT_1963_7_1_a3,
     author = {L. H\"ormander},
     title = {Hypoelliptic differential operators},
     journal = {Matematika},
     pages = {66--78},
     year = {1963},
     volume = {7},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1963_7_1_a3/}
}
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IS  - 1
UR  - http://geodesic.mathdoc.fr/item/MAT_1963_7_1_a3/
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ID  - MAT_1963_7_1_a3
ER  - 
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