@article{SF_1982__24_134544,
     author = {H. J\"urgensen},
     title = {Ein {fast-Jordan-H\"older} {Satz} f\"ur {Fastideale.}},
     journal = {Semigroup forum},
     pages = {149--172},
     year = {1982},
     volume = {24},
     zbl = {0481.20039},
     url = {http://geodesic.mathdoc.fr/item/SF_1982__24_134544/}
}