@article{MS2_1970__26_166139,
     author = {Barbro Grevholm},
     title = {On the {Structure} of the {Spaces} ... .},
     journal = {Mathematica Scandinavica},
     pages = {241--254},
     publisher = {mathdoc},
     volume = {26},
     year = {1970},
     zbl = {0212.46002},
     url = {http://geodesic.mathdoc.fr/item/MS2_1970__26_166139/}
}