@article{10_1017_S0017089500008041,
     author = {May, Coy L.},
     title = {Complex doubles of bordered {Klein} surfaces with maximal symmetry},
     journal = {Glasgow mathematical journal},
     pages = {61--71},
     year = {1991},
     volume = {33},
     number = {1},
     doi = {10.1017/S0017089500008041},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008041/}
}