@article{10_1017_S0017089500000380,
     author = {Iyahen, S. O.},
     title = {Semiconvex spaces},
     journal = {Glasgow mathematical journal},
     pages = {111--118},
     year = {1968},
     volume = {9},
     number = {2},
     doi = {10.1017/S0017089500000380},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500000380/}
}