@article{CM_1974__28_1_9_0,
     author = {Lehrer, G. I.},
     title = {Discrete series and the unipotent subgroup},
     journal = {Compositio Mathematica},
     pages = {9--19},
     publisher = {Noordhoff International Publishing},
     volume = {28},
     number = {1},
     year = {1974},
     mrnumber = {340438},
     zbl = {0306.20007},
     language = {en},
     url = {http://www.numdam.org/item/CM_1974__28_1_9_0/}
}