@article{CM_1978__36_1_75_0,
     author = {Van Mill, J.},
     title = {A pseudo-interior of $\lambda I$},
     journal = {Compositio Mathematica},
     pages = {75--82},
     publisher = {Sijthoff et Noordhoff International Publishers},
     volume = {36},
     number = {1},
     year = {1978},
     zbl = {0389.54016},
     language = {en},
     url = {http://www.numdam.org/item/CM_1978__36_1_75_0/}
}