@article{MAN_1995__301_4_165316,
     author = {Henrik Petersen and Yat Sun Poon},
     title = {Equivariant connected sums of compact self-dual manifolds.},
     journal = {Mathematische Annalen},
     pages = {717--750},
     publisher = {mathdoc},
     volume = {301},
     number = {4},
     year = {1995},
     zbl = {0820.53021},
     url = {http://geodesic.mathdoc.fr/item/MAN_1995__301_4_165316/}
}