no. 2
Courbure presque négative en dimension 3
Compositio Mathematica, Tome 63 (1987) no. 2, pp. 223-236. 
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     author = {Bavard, C.},
     title = {Courbure presque n\'egative en dimension 3},
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     pages = {223--236},
     publisher = {Martinus Nijhoff Publishers},
     volume = {63},
     number = {2},
     year = {1987},
     mrnumber = {906372},
     zbl = {0642.53047},
     language = {fr},
     url = {http://archive.numdam.org/item/CM_1987__63_2_223_0/}
}
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Bavard, C. Courbure presque négative en dimension 3. Compositio Mathematica, Tome 63 (1987) no. 2, pp. 223-236. http://archive.numdam.org/item/CM_1987__63_2_223_0/

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5 H.B. Lawson: Foliations. Bull. A.M.S. 80 (1974) 369-418. | MR | Zbl

6 B O'Neill:The fundamental equations of a submersion. Michigan Math. J. 13 (1966) 459-469. | MR | Zbl

7 D. Rolfsen: Knots and links. Publish or Perish (1976). | MR | Zbl