@article{IM_1977__42_142499,
     author = {Nicolaas H. Kuiper and William F. Pohl},
     title = {Tight {Topological} {Embeddings} of the {Real} {Projective} {Plane} in {E5.}},
     journal = {Inventiones mathematicae},
     pages = {177--200},
     publisher = {mathdoc},
     volume = {42},
     year = {1977},
     zbl = {0366.53031},
     url = {http://geodesic.mathdoc.fr/item/IM_1977__42_142499/}
}