@article{GFA_1991__1_2_58116,
     author = {L. Polterovich},
     title = {The {Surgery} of {Lagrange} {Submanifolds.}},
     journal = {Geometric and functional analysis},
     pages = {198--210},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {1991},
     zbl = {0754.57027},
     url = {http://geodesic.mathdoc.fr/item/GFA_1991__1_2_58116/}
}