@article{10_4153_CMB_1991_057_9,
     author = {Izumiya, Shy\"uichi},
     title = {Topological {Properties} of {Legendrian} {Singularities}},
     journal = {Canadian mathematical bulletin},
     pages = {357--363},
     year = {1991},
     volume = {34},
     number = {3},
     doi = {10.4153/CMB-1991-057-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-057-9/}
}