@article{RSMUP_1988__80__25_0,
     author = {Ballester, A. and Ezquerro, L. M.},
     title = {A note on the {Jordan-H\"older} theorem},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {25--32},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {80},
     year = {1988},
     mrnumber = {988109},
     zbl = {0665.20011},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1988__80__25_0/}
}