@article{GT_2015_19_3_a1,
     author = {Lescop, Christine},
     title = {A formula for the {\ensuremath{\Theta}{\textendash}invariant} from {Heegaard} diagrams},
     journal = {Geometry & topology},
     pages = {1205--1248},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {2015},
     doi = {10.2140/gt.2015.19.1205},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2015.19.1205/}
}