@article{MET_1985__32_176020,
     author = {R. Henn},
     title = {Operations {Research} -  {Ellinger,} {Th.}},
     journal = {Metrika},
     pages = {409--409},
     publisher = {mathdoc},
     volume = {32},
     year = {1985},
     url = {http://geodesic.mathdoc.fr/item/MET_1985__32_176020/}
}