@article{10_4064_sm_31_1_29_34,
     author = {Richard Arens},
     title = {Ideals in {Banach} algebra extensions},
     journal = {Studia Mathematica},
     pages = {29--34},
     year = {1968},
     volume = {31},
     number = {1},
     doi = {10.4064/sm-31-1-29-34},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-31-1-29-34/}
}