@article{ASENS_1972_4_5_3_459_0,
     author = {Kleppner, Adam and Lipsman, Ronald},
     title = {The plancherel formula for group extensions},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {459--516},
     publisher = {Elsevier},
     volume = {Ser. 4, 5},
     number = {3},
     year = {1972},
     doi = {10.24033/asens.1235},
     mrnumber = {49 #7387},
     zbl = {0239.43003},
     language = {en},
     url = {http://archive.numdam.org/articles/10.24033/asens.1235/}
}