@article{GT_2020_24_4_a8,
     author = {Fujiwara, Koji and Shioya, Takashi},
     title = {Graph manifolds as ends of negatively curved {Riemannian} manifolds},
     journal = {Geometry & topology},
     pages = {2035--2074},
     publisher = {mathdoc},
     volume = {24},
     number = {4},
     year = {2020},
     doi = {10.2140/gt.2020.24.2035},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2020.24.2035/}
}