@article{MAN_1992__293_4_164982,
     author = {John Kalliongis},
     title = {Realizing automorphisms of the fundamental group of irreducible 3-manifolds containing two-sided projective planes.},
     journal = {Mathematische Annalen},
     pages = {707--728},
     publisher = {mathdoc},
     volume = {293},
     number = {4},
     year = {1992},
     zbl = {0736.57007},
     url = {http://geodesic.mathdoc.fr/item/MAN_1992__293_4_164982/}
}