TY - JOUR AU - Trigos-Arrieta, F. Javier AU - TurzaƄski, Marian TI - On Aumann's theorem that the circle does not admit a mean JO - Acta Universitatis Carolinae. Mathematica et Physica PY - 2005 SP - 77 EP - 82 VL - 46 IS - 2 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/item/AUCMP_2005__46_2_a12/ LA - en ID - AUCMP_2005__46_2_a12 ER -