@article{10_1017_S0017089500007047,
     author = {Montgomery, Hugh L.},
     title = {Minimal theta functions},
     journal = {Glasgow mathematical journal},
     pages = {75--85},
     year = {1988},
     volume = {30},
     number = {1},
     doi = {10.1017/S0017089500007047},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007047/}
}