@article{MAN_1984__267_163904,
     author = {Terry Lawson},
     title = {Detecting the {Standard} {Embedding} of {IR} {P2} in {S4.}},
     journal = {Mathematische Annalen},
     pages = {439--448},
     publisher = {mathdoc},
     volume = {267},
     year = {1984},
     zbl = {0525.57026},
     url = {http://geodesic.mathdoc.fr/item/MAN_1984__267_163904/}
}