@article{10_4007_annals_2015_182_2_8,
     author = {Andy Wand},
     title = {Tightness is preserved by {Legendrian} surgery},
     journal = {Annals of mathematics},
     pages = {723--738},
     publisher = {mathdoc},
     volume = {182},
     number = {2},
     year = {2015},
     doi = {10.4007/annals.2015.182.2.8},
     mrnumber = {3418529},
     zbl = {06487151},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2015.182.2.8/}
}