@article{10_4064_sm_67_2_157_172,
     author = {Hermann K\"onig},
     title = {s-numbers, eigenvalues and the trace theorem in {Banach} spaces},
     journal = {Studia Mathematica},
     pages = {157--172},
     publisher = {mathdoc},
     volume = {67},
     number = {2},
     year = {1980},
     doi = {10.4064/sm-67-2-157-172},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-67-2-157-172/}
}