@article{10_1017_S0017089503001447,
     author = {OLSEN, L.},
     title = {ON {THE} {DIMENSIONLESSNESS} {OF} {INVARIANT} {SETS}},
     journal = {Glasgow mathematical journal},
     pages = {539--543},
     year = {2003},
     volume = {45},
     number = {3},
     doi = {10.1017/S0017089503001447},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089503001447/}
}