Space time manifolds and contact structures.
Duggal, K.L.
International Journal of Mathematics and Mathematical Sciences, Tome 13 (1990), p. 545-554 / Harvested from The Electronic Library of Mathematics
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Publié le : 1990-01-01
DOI : https://doi.org/10.1155/S0161171290000783
EUDML-ID : urn:eudml:doc:46548 
@article{04178049,
     title = {Space time manifolds and contact structures.},
     journal = {International Journal of Mathematics and Mathematical Sciences},
     volume = {13},
     year = {1990},
     pages = {545-554},
     doi = {10.1155/S0161171290000783},
     zbl = {0715.53032},
     language = {en},
     url = {http://dml.mathdoc.fr/item/04178049}
}

Duggal, K.L. Space time manifolds and contact structures.. International Journal of Mathematics and Mathematical Sciences, Tome 13 (1990) pp. 545-554. doi : 10.1155/S0161171290000783. http://gdmltest.u-ga.fr/item/04178049/