@article{10_2140_agt_2014_14_3281,
     author = {Calcut, Jack S and Haggerty, Patrick V},
     title = {Connected sum at infinity and 4{\textendash}manifolds},
     journal = {Algebraic and Geometric Topology},
     pages = {3281--3303},
     year = {2014},
     volume = {14},
     number = {6},
     doi = {10.2140/agt.2014.14.3281},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2014.14.3281/}
}