TY - JOUR Y1 - 2017/// SP - 837 TI - On the shape of solution sets of systems of (functional) equations A1 - Tóth Endre A1 - Waldhauser Tamás EP - 857 ID - publicatio17313 JF - AEQUATIONES MATHEMATICAE VL - 91 AV - public UR - http://doi.org/10.1007/s00010-017-0499-2 SN - 0001-9054 ER -