@article{CMH_1988__63_4_140136,
     author = {Mich\`ele Audin},
     title = {Fibr\'es normaux d'immersions en dimension double, points doubles d'immersions lagrangiennes et plongements totalement r\'eels.},
     journal = {Commentarii mathematici Helvetici},
     pages = {593--623},
     publisher = {mathdoc},
     volume = {63},
     number = {4},
     year = {1988},
     zbl = {0666.57024},
     url = {http://geodesic.mathdoc.fr/item/CMH_1988__63_4_140136/}
}